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Space Exploration/Questions Answered by Expert Kenneth Renshaw
| Subject | Date Asked |
| Solar Storm | 1/24/2012 |
| Q: Kenneth! My question is simple about today's burning issue of NASA. What is Solar Storm? Please tell ... A: Arslan, thanks for writing. A solar storm is a huge flame of gas exploding out of the Sun. It is ... | |
| Space Exploration | 12/7/2011 |
| Q: 1) What are some discoveries from space exploration(e.g. scientific, medical)that you feel have most ... A: Michael, thanks for writing. To answer 1) would just about require a book. Some things that have ... | |
| rocket | 11/23/2011 |
| Q: why cant we use a propeller along with a rocket engine , if we use it the resultant velocity will be ... A: A propeller can only be used when there is air for the propeller to move. Rockets are mainly used ... | |
| Time- 4th dimension | 10/19/2011 |
| Q: Kenneth I have seen so many space programs and videos to say that the "Time" is the 4th dimension. ... A: Saravana, thanks for writing. It is difficult to visualize time as the fourth dimension, since we ... | |
| space scientist | 8/20/2011 |
| Q: sir,i am doing my b tech in cse at present.as i am completely interested in space exploration or ... A: Since it depends on what area of space science you wish to enter and I am unfamiliar with your ... | |
| Space | 8/9/2011 |
| Q: I've the following questions: 1. Can (and if yes, how)the secrets of black holes be linked to the ... A: 1. I think the magnificence of the universe itself is proof of the existence of God. I am not sure ... | |
| Alpha century | 8/6/2011 |
| Q: Alpha century is the closest star to the sun, right? So how come we can't see it as the brightest ... A: Not as massive as the brighter stars (those that are actually brighter from a set distance. The ... | |
| Safety Effects of Space Exploration | 8/6/2011 |
| Q: I am a student in senior high school currently studying whether the funding for space exploration is ... A: Emily, thanks for writing. As far as safetly impacts of space exploration, about the only danger I ... | |
| Alpha century | 8/2/2011 |
| Q: Alpha century is the closest star to the sun, right? So how come we can't see it as the brightest ... A: Sora, thanks for writing. There are 2 things that determine the brightness of a star-its distance, ... | |
| ISS | 7/13/2011 |
| Q: Where can I find by specific date/time of iss flight path/visibility? I tried a NASA website with no ... A: Josh, thanks for writing. I am not sure about a site to find out about a past date, but this one ... | |
| shuttle abolished? Obama's budget cuts? | 5/31/2011 |
| Q: first time using this service. Short, simple but important question. Do you know of any pending ... A: Current work is on manned missions to the asteroid belt, and, eventually, Mars. Not sure of the ... | |
| Voyager probes | 4/29/2011 |
| Q: NASA is reporting that the Voyager space probes "have traveled to the edge of the solar system and ... A: Although the Sun's gravity is in control of the distant Oort cloud, the definition used by NASA is ... | |
| Space Research | 4/20/2011 |
| Q: Please answer the following: How vast is the universe? How much has been explored? Are there any ... A: Abhishek, thanks for writing. To answer these, The universe is possibly infinite, but is at least ... | |
| universe | 4/14/2011 |
| Q: What are planets, stars, galaxies, and space? What is everything that exists? A: Planets are, by current definition, something that orbits the Sun (rather than another planet, ... | |
| Re-entry | 3/29/2011 |
| Q: When the Space Shuttle returns to earth, it comes across re-entry and it exposes to thousands of ... A: The temperature of reentry is due to the atmospheric friction when the shuttle, at 5 miles per ... | |
| dark energy and matter | 3/9/2011 |
| Q: What is dark energy and dark matter? ANSWER: Hi, thanks for writing. Dark matter is matter that ... A: The gravity is detected by more attraction (and orbital speed) of stars, etc. at the edge of ... | |
| Mars | 3/5/2011 |
| Q: How are the space organizations planning to terraform Mars? Personally, I've always seen us ... A: Due to the technological challenge, there are no current plans to terraform Mars in the foreseeable ... | |
| Space Exploration | 2/24/2011 |
| Q: 1)What are some plausible advantages of space exploration? 2)What is the average cost of launching a ... A: The crater size on the Yuchitan peninsula in Mexico indicates a meteorite of that size, and the date ... | |
| Space Exploration | 2/22/2011 |
| Q: 1)What are some plausible advantages of space exploration? 2)What is the average cost of launching a ... A: 1) besides the scientific knowledge and the related benefits (such as better weather forecasting), ... | |
| dark energy and matter | 2/16/2011 |
| Q: What is dark energy and dark matter? A: Dark matter is matter that has mass (therefore, we can study its gravity), but interacts very little ... | |
| Distant Galactic Exploration | 2/7/2011 |
| Q: I am doing a research project on galactic exploration via telescope and other instruments and I ... A: Distant galactic studies show us the distant past in the universe, like a time machine (due to the ... | |
| Space Shuttle | 2/7/2011 |
| Q: Can you help with this please? Considering an astronaunt is in an orbiting space shuttle. Which of ... A: I am not sure what part of the question means. What is meant by normal force? (Is it gravity?) ... | |
| space | 2/6/2011 |
| Q: Am I accurate in saying.... A geosynchronous satellite around the Earth has a period of 1 day? ... A: A is wrong-the satellite is at a constant speed. B is wrong-the gravity changes the direction, but ... | |
| Space Satellites | 2/6/2011 |
| Q: Can you help with this question not sure what the right answer would be? Satellites do not fall ... A: The speed (therefore, the period) of a satellite depends on it's altitude (distance from the ... | |
| Rocket speed | 1/18/2011 |
| Q: With current technology, what is the fastest rocket speed possible? A: Bill, thanks for writing. The maximum speed depends on a number of factors: where the rocket is ... | |
| time | 1/6/2011 |
| Q: even thoh we havent figured out a way to travel through time yet do you think it is possible to do ... A: Right now, and for a long time, time travel is beyond human technology (and may always be). ... | |
| zero volume | 12/25/2010 |
| Q: How can a thing be reduced to zero volume and infinite density? It is said that universe came into ... A: It is beyond comprehension to see as logical this primevial atom, the thing becoming the universe. ... | |
| stars | 12/7/2010 |
| Q: Is it true that space is in motion? In which medium its traveling? ANSWER: Hi, thanks for writing! ... A: Stars come in all colors, due to the temperature of their surface. Most just appear white since they ... | |
| Scientific discoveries | 10/29/2010 |
| Q: What significant or interesting discoveries have been made as a result of space travel. I read ... A: Lucinda, thanks for writing. There are a few websites I have found that should give you some ... | |
| medium of space | 10/26/2010 |
| Q: Is it true that space is in motion? In which medium its traveling? A: Even though it is hard to comprehend, empty space itself is actually expanding. Matter can travel ... | |
| Dimensions | 10/15/2010 |
| Q: What exactly are dimensions? What do we mean by "Another dimension"? A: Sora, thanks for writing. A dimension is a direction in space or time. Space has 3 dimensions: ... | |
| earth's revolution | 10/7/2010 |
| Q: I often wonder how the scientist discover that its not sun that revolves around earth but the ... A: The earth being in motion around the Sun at a certain speed explains the backward motion of the ... | |
| space travel | 10/6/2010 |
| Q: How would a spaceship travelling at thousands of miles an hour slow down if they could not use a ... A: Allan, thanks for writing. Thrusters are used for slowing down a spaceship, although gravity is ... | |
| earth's revolution | 9/14/2010 |
| Q: I often wonder how the scientist discover that its not sun that revolves around earth but the ... A: For a long time, it was noticed that the planets moved strangely--in fact the outer planets moved ... | |
| Space | 8/5/2010 |
| Q: Sir, what is space? A: Noone knows exactly. Most people consider space as the absence of matter, but space seems to be ... | |
| Space and time | 8/4/2010 |
| Q: What is space and time ? How it created? A: Space and time are 2 similar things. Space is normally considered empty, although it can have ... | |
| orbital trajectory | 5/17/2010 |
| Q: How do spacecrafts change direction in orbit , as opposed to a constant "straight line" ? Thanx! ... A: Your email didn't come through, but I will try to send a drawing through allexperts. You might note ... | |
| orbital trajectory | 5/16/2010 |
| Q: How do spacecrafts change direction in orbit , as opposed to a constant "straight line" ? Thanx! ... A: Most spacecraft are aimed at an angle to the equator. When it is in half of its orbit, it is going ... | |
| orbital trajectory | 5/15/2010 |
| Q: How do spacecrafts change direction in orbit , as opposed to a constant "straight line" ? Thanx! A: An object would go in a straight line except for the gravity of the earth or whatever object it is ... | |
| Jupiter to star | 5/8/2010 |
| Q: What would happen if a Neptune slammed into Jupiter? Would Jupiter become a star? If so how come A: If Neptune and Jupiter combined, there would still not be nearly enough mass to create a star. ... | |
| Part of rocket | 4/23/2010 |
| Q: I have a question related to the topic: What exactly happens to parts that are with the rocket until ... A: There is a small threat of a comet or asteroid hitting the Earth and causing death and destruction. ... | |
| Part of rocket | 4/23/2010 |
| Q: I have a question related to the topic: What exactly happens to parts that are with the rocket until ... A: Matej, thanks for writing. Rockets normally come in parts or stages, to save fuel. Once a stage ... | |
| Space Thrusters | 4/10/2010 |
| Q: If there is no air and Newton's Third law provides the explanation of what causing a space thruster ... A: I am not familiar with the exact physics of the Newtonian law, but the last sentence you wrote seems ... | |
| Space Thrusters | 4/10/2010 |
| Q: If there is no air and Newton's Third law provides the explanation of what causing a space thruster ... A: Daniel, thanks for writing. There does not need to be any air for that "equal and opposite ... | |
| cosmo rays | 3/21/2010 |
| Q: is it true that cosmo rays are entering in earth from mars? shall i switch off my mobile? ANSWER: ... A: Beyond the solar system means among the stars. The furthest planet in our solar system is so close ... | |
| cosmo rays | 3/21/2010 |
| Q: is it true that cosmo rays are entering in earth from mars? shall i switch off my mobile? A: Ruchi, thanks for writing. Cosmic Rays are particles that come from outside the solar system, not ... | |
| planet earth and it sister earth | 3/20/2010 |
| Q: what are possibilty that there could be a planet like earth in the same rotation as earth but 6 ... A: Stanley, thanks for writing. For a long time, there was a theory among astronomers of the ... | |
| Space Exploration | 3/11/2010 |
| Q: Do you think that space exploration is an innovation in history? If so, which series of missions do ... A: Yes, I think space exploration is an important innovation of human history. It's difficult to ... | |
| Ultraviolet Radiation | 3/4/2010 |
| Q: What are the advantages and disadvantages of researching space using ultraviolet radiation? A: Emily, thanks for writing. Ultraviolet is a higher frequency of light that tells us things about ... | |
| space | 2/9/2010 |
| Q: I don't get how time has to do with space or how it is another dimension altogether. A: Neil, thanks for writing. I realize that this is hard to visualize. Probably the best way to see ... | |
| Astronomy | 1/14/2010 |
| Q: Mr. Renshaw Could you please explain how a star is "born" and how does one "die"? (Does the latter ... A: Antoniece, thanks for writing. In general, a star is born when a huge cloud of dust and gas ... | |
| More on Gravity | 1/2/2010 |
| Q: I know that gravity can be created artificially by spinning objects faster. I then remember reading ... A: Carol, thanks for writing. Actually you would feel less gravity then. When you spin something, the ... | |
| The gravity of a gigantic comet | 12/30/2009 |
| Q: I'm trying to write a short sci fi story, but my lack of scientific knowledge is holding me back. I ... A: Joseph, thanks for writing. A comet with that diameter would indeed throw a spacecraft completely ... | |
| Kepler Mission | 12/21/2009 |
| Q: I've been following the Kepler Mission and I've checked out JPL's Kepler website. I'm very ... A: I am not sure of the exact figure, but that sounds right. Variable stars, stars with excessive ... | |
| Universal Gravitation | 12/9/2009 |
| Q: Newton said that "every object in the universe attracts every other object along a line of the ... A: I am not sure exactly what information you are needing, but an orbit is when the speed of an object ... | |
| Venus and Traveling to Venus | 12/6/2009 |
| Q: Actually, there's more to the question than that. 1. If my spaceship went the speed of light, how ... A: Julia, thanks for writing. 1. at light speed, it would take less than 3 minutes, if Venus is ... | |
| Apollo 11 Moon Landing | 12/6/2009 |
| Q: My name is Jacob McDonald and I am a student of the University of Canterbury. I am conducting ... A: Jacob, thanks for writing. I would believe they did land on the Moon. Such a colossal hoax as a ... | |
| Few more gravity and 4th Dimension related questions... | 10/27/2009 |
| Q: I gone through your past Qustions and answers, on 7/17/2009 some questions asked. (1. What is a ... A: 1) time has been shown to slow with velocity (atomic clocks on jets), and gravity, like space can ... | |
| Even gravity can control Light? | 10/26/2009 |
| Q: I gone through your past Qustions and answers, on 7/17/2009 some questions asked. (1. What is a ... A: Gravity can bend the path of light (even though it has no mass), as well as the path of an object ... | |
| Distance to the Moon | 9/22/2009 |
| Q: i had a general question about the trip to the moon. if a spacecraft has the ability to move at a ... A: It took longer since the Apollo craft orbited the earth 1 1/2 times before leaving it for the moon. ... | |
| The universe | 9/9/2009 |
| Q: From what i understand the universe began from an infinitely small point about 14 billion years ago ... A: Dan, thanks for writing. The answer is simple, but difficult to comprehend-"Nothing". There was ... | |
| shuttle speed | 7/30/2009 |
| Q: how the shuttle speed is reduced from 170000 m/h to docking speed of 5 to 7 m/h ? ANSWER: Hi, ... A: The shuttle is unable to fly directly to the station, due to the speed the station is going. It ... | |
| shuttle re-entry videos ? | 7/21/2009 |
| Q: I was wondering why there are no re-entry videos of the shuttle / apollo missions ? These days you ... A: I never gave that much thought-there aren't many videos that I am aware of. I think I may have seen ... | |
| The Sun | 7/17/2009 |
| Q: I'd like to ask a few questions about the sun 1. How did the sun become so hot ? 2. If there is no ... A: 1. A black hole is when a very large star collapses at the end of its life (after a supernova), and ... | |
| The Sun | 7/16/2009 |
| Q: I'd like to ask a few questions about the sun 1. How did the sun become so hot ? 2. If there is no ... A: Rick, thanks for writing. 1. the Sun formed from a huge cloud of gas. Gravity pulled it together ... | |
| Space automatic Watch | 7/8/2009 |
| Q: I was hoping you could help me with thisOn missions to the moon and general space missions the Omega ... A: I am not familiar with the Omega Speedmaster-is it Cesium digital or a mechanical watch? I think ... | |
| nebula | 7/7/2009 |
| Q: what is meant by planetary nebula? AnotherHow the earth or other planets revolve around the sun in ... A: I am not familiar with the mathematics of orbital mechanics, but the center of gravity is at one ... | |
| Space | 7/6/2009 |
| Q: Is it true that when the Concorde was flying at cruising altitude, it was dark outside even at noon ... A: Jane, thanks for writing. I am not sure at what altitude the Concorde flew, but, yes, the sky would ... | |
| nebula | 7/5/2009 |
| Q: what is meant by planetary nebula? AnotherHow the earth or other planets revolve around the sun in ... A: A planetary nebula is a somewhat round cloud of gas that sometimes looks like a planet in a small ... | |
| space | 6/13/2009 |
| Q: what is radium power?how is it used in spacecrafts A: Radium is a radioactive element that produces heat when it decays. Although I am not familiar with ... | |
| moon | 5/29/2009 |
| Q: should we be able to pinpoint the lunar module landing stages (the bits left behind after modules ... A: 1. We know the exact location, but no current spacecraft, except perhaps the Lunar Reconaissance ... | |
| Saturn | 5/21/2009 |
| Q: Im in 8th grade and im doing a project on Saturn. i was wonderin if you could send me some ... A: Meredith, thanks for writing. Probably the easiest way would be to give you some links to websites ... | |
| Astronomy questions | 4/20/2009 |
| Q: I am a middle school student doing research on alien life. I have a question (actually two): How ... A: Tarun, thanks for writing. No one knows the number of stars, but a guess is about ... | |
| Research report on Orbital mechanics | 4/8/2009 |
| Q: I am Sai an Aerospace engineering(Flight dynamics and controls) student doing my final yr bachelors ... A: Sai, thanks for writing. Since I have not majored in this area, I can only give general remarks. ... | |
| Looking from jupiter | 3/17/2009 |
| Q: i know you cant stand on jupiter, but if you could and you looked around, what stars or planets ... A: Linda, thanks for writing. From Jupiter, Uranus would be a faint dot of light, Saturn would be ... | |
| Planets | 3/12/2009 |
| Q: Why do they all appear to be 'round'? Since they all spin, I would expect them to be cylindrical, ... A: Bob, thanks for writing. If there is enough gravity in an object, it pulls all the material into ... | |
| information in space. | 3/5/2009 |
| Q: i have a specific but hopefully more or less a bsic question based on space exploration. i just ... A: Derick, thanks for writing. You are right on all your assumptions. Radio waves contain all the ... | |
| Time | 2/17/2009 |
| Q: Myself Yogesh Patwardhan, I am from India... I think & believe that time is nothing but a concept. ... A: Yogesh, thanks for writing. I am not sure exactly what you are asking, but time is something that ... | |
| collisions in space | 2/14/2009 |
| Q: About the resent collision of two satellites, were they both going in the same direction? Was it a ... A: From an animation I saw, it was about like a car going east on a street and running a stop sign, ... | |
| Space exploration | 2/10/2009 |
| Q: Kenneth I saw a BBC program about space(some years back) in which they explained three assumptions ... A: I was in the middle of the worst part of the Arkansas/Missouri ice storm and lost internet for over ... | |
| satellites | 2/7/2009 |
| Q: what satellites light can be seen from earth at dusk orearly eveningieoyu A: I was in the middle of the worst part of the Arkansas/Missouri ice storm and lost internet for over ... | |
| spaceships | 1/26/2009 |
| Q: Are spaceship blast offs harmful to the Earth?If so how and what gases are released. A: Sarah, thanks for writing. The only harm would be the greenhouse gasses from the rocket exhaust, ... | |
| light | 1/22/2009 |
| Q: is the speed of light obtainable A: John, thanks for writing. According to Einstein's Theory of Relativity (which has no known ... | |
| Future space travel to Mercury | 1/15/2009 |
| Q: We are completing a school project which asks if any future travel to the planet we are reporting on ... A: As far as I know, there are no missions in the works for Mercury, except for the current flight of ... | |
| Lunar Images | 12/29/2008 |
| Q: Sorry if this is a duplication but I lost my connection right when I hit "send" Hi, My question ... A: Linda, thanks for writing. We have a lot more satellites (hundreds) around the earth than the moon, ... | |
| Helmets | 12/11/2008 |
| Q: When Astronauts travel in space,the MUST wear a special helmet. Why do they have to?? A: Rebecca, thanks for writing. The helmet is an air-tight area that is filled with oxygen, so the ... | |
| Where does it go? | 10/28/2008 |
| Q: Okay, so I've always wondered something: When a space shuttle takes off into outerspace, it detaches ... A: Debra, thanks for writing. In the case of the shuttle, there are 3 parts to the "back end"-2 solid ... | |
| fuel | 9/27/2008 |
| Q: are space shuttles designed to run on gasoline or different fuel? Where can I find more information ... A: James, thanks for writing. The shuttle uses hydrogen in the external tank to feed the main engines, ... | |
| How long does it take to travel between planets? | 9/15/2008 |
| Q: I'm trying to locate information on specific journey times between planets (roughly, I know they are ... A: Your figures are well in the ball park, except the Moon-Earth would probably be less than 3 days. ... | |
| question | 9/11/2008 |
| Q: Is bigbang theory accepted universely by scientists? A: Since the discovery of the cosmic background radiation (the leftover light from the bang), the big ... | |
| Leaving the atmosphere with helium help? | 9/4/2008 |
| Q: i would like to know why we just take a type of balloon to the stars? Isn't it possible to get very ... A: I am not sure where that altitude would be, and it would also depend on the weight taken on as well ... | |
| Leaving the atmosphere with helium help? | 9/3/2008 |
| Q: i would like to know why we just take a type of balloon to the stars? Isn't it possible to get very ... A: A helium would lift the spacecraft up to an altitude where air is about the same density as the ... | |
| Space Exploration | 8/3/2008 |
| Q: What are the advantages & disadvantages of space exploration? A: The disadvantages would probably be limited to expense (although space exploration accounts for a ... | |
| mars | 7/27/2008 |
| Q: There was so much excitement about the phoenix lander and it was beggining to take samples and ... A: Al, thanks for writing. Like a lot of things, when the media gets something new, it gives it a lot ... | |
| space and this site | 7/25/2008 |
| Q: i've been shut down. to much activity. email me at tophat@gibsoncounty.net thats in Indiana you ... A: Outer space is defined as from outside the atmosphere (a sub-orbital flight of around 60 miles ... | |
| big diper | 7/24/2008 |
| Q: show me what the big diper looks like A: Skyla, thanks for writing. The big dipper looks like a big spoon, with a handle at one end and cup ... | |
| :-) family and space | 7/23/2008 |
| Q: ok Kenneth, who was your gggrandfather? How old is space? Marie A: Marie, thanks for writing. Another Renshaw!! That is such an unusual name-where are you from? (my ... | |
| gravity | 7/14/2008 |
| Q: At what distance from the surface of the earth (sea level) does objects become weightless?? A: Keith, thanks for writing. Actually, the gravity of the earth or any other object extends out ... | |
| elliptical orbit | 7/6/2008 |
| Q: I am an 'expert' in the Physics category trying to help a science fiction writer. Some of his ... A: Steve. Are you referring to a satellite around the Moon? It would probably keep the apoapsis (the ... | |
| Newton/Einstein use in calculation of a space flight | 7/5/2008 |
| Q: Kenneth My friend and I were discussing gravity and the conversation came round to a spefic ... A: Although I am not sure of the figures involved, I would say that, since Einstein's adjustments are ... | |
| Kuiper belt, Oort cloud & the Voyagers | 7/2/2008 |
| Q: I understand Voyager 2 has left the solar system, and V1 did it before. My question is, what with ... A: The voyagers are in the Kuiper Belt (30-80 AU, or 30-80 times the Sun-Earth distance) now, but, ... | |
| pluto | 6/26/2008 |
| Q: since pluto was ruled out to being planet and said to be a moon which planet does it evolve against? A: Actually, Pluto was demoted to a "dwarf planet" (a smaller object revolving around the Sun) rather ... | |
| quasars and red shifts | 5/31/2008 |
| Q: I have just watched a tv prog about the galaxy NGC 7603 and its companion galaxy, which for years ... A: I am not familiar with this particular example, but sometimes gravitational influence of a close ... | |
| Van Allen belt | 5/28/2008 |
| Q: Is it actually possible that humans can pass through the Van Allen belt in the spacecraft of today? ... A: Lee, thanks for writing. The Apollo astronauts spent a limited time going through the belts enroute ... | |
| symmetry in universe | 5/26/2008 |
| Q: Seeing the theory of matter and anti matter(electrons and positrons for example)can we ask a basic ... A: Eddy, thanks for writing. Scientists have often wondered that. As far as we know, we have a ... | |
| Interstellar trash? | 5/25/2008 |
| Q: With the Phoenix Lander touching down today sometime (should the propulsion system succeed) I've ... A: Drew, thanks for writing. Most debris, outside earth orbit, normally moves indefinitely (like the ... | |
| lif on the moon | 5/24/2008 |
| Q: "Can there be existence of human life on moon?".... A: Are you referring to now, or in the future with proper protection? As of now, there can be no life ... | |
| about shuttle | 5/21/2008 |
| Q: my question is,please let me know that while space satelite is moving round the earth why it does ... A: The shuttle, or any other satellite, is at such a speed that the amount it is falling, from earth's ... | |
| Space science | 5/20/2008 |
| Q: How many times did man land on moon? A: There were 6 successful landings in 1969-1972, each with 2 men walking on the Moon--Apollo 11, 12, ... | |
| expanding space | 5/19/2008 |
| Q: I have heard that universe space expanding like a balloon. But I want to know what is bordering the ... A: I am not sure exactly what you mean, but nothing is actually limiting the space-it will keep ... | |
| Rocketry/Moon | 5/18/2008 |
| Q: Okay Kenneth, this is probably going to sound really stupid, but I'm curious, so try to bear with ... A: It probably wouldn't be possible, as the moon revolves around the earth each 29 days, and the bottom ... | |
| expanding space | 5/16/2008 |
| Q: I have heard that universe space expanding like a balloon. But I want to know what is bordering the ... A: It is expanding, but, as far as we know (and this is hard to comprehend), there is nothing outside ... | |
| space exploration | 5/13/2008 |
| Q: The escape velocity (from earth's gravity) is about 11.2 km/sec. Since the speed of bullet, leaving ... A: Neel, thanks for writing. Actually a bullet goes, depending on the gun, about 2000 miles per hour, ... | |
| Space | 5/2/2008 |
| Q: The students in my 7th grade class want to know: 1. Is the international space station always in ... A: 1. At around 200 miles altitude, the ISS is not high enough to gain more than a few minutes sunlight ... | |
| space travel | 5/2/2008 |
| Q: i not sure if it has been asked there are a lot of questions to look through but with our current ... A: There are a few reasons for not being beyond earth orbit or the moon yet. 1. Even a trip to nearby ... | |
| odds | 5/1/2008 |
| Q: What are the odds of dying in space? ANSWER: Hi, Hula, thanks for writing. This, of course, ... A: Actually, the number of astronauts was an approximation (a more accurate figure, as well as ... | |
| odds | 4/29/2008 |
| Q: What are the odds of dying in space? A: Hula, thanks for writing. This, of course, depends on a lot of factors, and no one knows for sure, ... | |
| moon | 3/16/2008 |
| Q: hello i was wondering how long would a space shuttle flight take to reach the moon? thank you A: Although it is impossible for the shuttle to go to the Moon (it would have to go faster than its ... | |
| where are we on the map | 2/28/2008 |
| Q: On earth we can pinpoint our location with longitude and latitude. In space it must be a 3 ... A: Jennifer, thanks for writing. Yes, it is a very similar system. We have right ascension (same as ... | |
| Exit and Re-entry | 2/14/2008 |
| Q: Mr. Renshaw I have always been fascinated by the edge of space and envy those who have seen stars ... A: Darin, thanks for writing. I never thought about that first question. Obviously, the answer would ... | |
| space travel | 2/5/2008 |
| Q: This is an odd one. People have been trying to do-it yourself into space for years.. What is the ... A: As far as seriously being able to get into space, the recent efforts by private industries are the ... | |
| Space | 1/26/2008 |
| Q: How big is the universe? i always have that question in my head can you help me out? My dad say's it ... A: Christina, thanks for writing! Although a little hard to imagine, the universe is believed by ... | |
| Space 2013 | 1/24/2008 |
| Q: my name is Rebecca and am looking for someone who is a passionate space follower who could possibly ... A: Rebecca. Most all space exploration out to 2013 and beyond is already in the planning stages. In ... | |
| science | 1/15/2008 |
| Q: would a space probe to the suns surface be useful? explain. A: Nancy, thanks for writing. The sun is a sphere of very hot gas and actually has no definite surface ... | |
| astroid hitting the earth | 1/14/2008 |
| Q: is there any danger of an astroid, in the near future hitting the earth?If it happens is our world ... A: Forgot to mention-a lot of the incoming asteroids are sucked up by the gravity of Jupiter before ... | |
| The Apollo-Soyuz Test Project | 1/10/2008 |
| Q: We are doing a research project for National History Day. Our district competition for Kansas is ... A: Lindsay and Anna-thanks for writing! The Apollo-Soyuz was the first space project joining the ... | |
| space | 1/6/2008 |
| Q: Iread that the earth is surrounded by three galaxies and that the north part is open and that is ... A: Actually, a galaxy is what we live in, and it is far larger than the area where the shuttle orbits. ... | |
| spaceship speed | 1/1/2008 |
| Q: I am trying to discover a new solar system for a project and, I was wondering, should I travel in a ... A: Alex, thanks for writing. Actually a rocket and a spaceship is the same thing, except a rocket is a ... | |
| spaceship speed | 1/1/2008 |
| Q: I was wondering, if I was going to find a new solar system should I take a rocket or spaceship? ... A: Alex, thanks for writing. Actually a rocket and a spaceship is the same thing, except a rocket is a ... | |
| orbits | 12/31/2007 |
| Q: If an object in high orbit (assume zero atmospheric drag) slowly and constantly had mass added to it ... A: If mass was added, the object would slow down and move toward the earth. However, it would be a ... | |
| Space | 10/22/2007 |
| Q: How far has our study in the solar system gone to? A: Exploration in the solar system has gone, if you are referring to distance from earth, to the ... | |
| Gravitation - Weak force ? | 10/15/2007 |
| Q: I have a doubt in rocket propulsion. I have studied and heared that earth's gravity is a weak force ... A: Mohan, thanks for writing. Gravity is an extremely weak force when you consider it takes the ... | |
| The Pro's and Con's of space exploration | 10/14/2007 |
| Q: Do you know some of the Pro's and Con's of Space Exploration? Like Money or the expanding of human ... A: A Few Pros: 1. the technology behind thousands of common devices were developed out of needs of the ... | |
| Sun slingshot | 10/12/2007 |
| Q: I've seen a few space missions that use the gravitational pull of the sun as a means by which a ... A: Usually it is a planet that is used as a slingshot to another planet, but repeated flybys of a ... | |
| Dark Matter Existance | 10/10/2007 |
| Q: I am a total layman to astro-physics and cosmology but ive always been interested and read lots of ... A: Yes, the dead stars (including black holes), dead planets, etc. can affect the total mass makeup. ... | |
| astro-fest | 9/26/2007 |
| Q: sir, we are students of IT-BHU, India and our college is going to conduct an astronomy fest ... A: 1) I am not aware at this point of any. 2) a few ideas: an astronaut to speak (I think there are ... | |
| Galaxy rotation | 9/15/2007 |
| Q: Would the thousands/millions of black holes in our galaxy and the supermassive one at the centre ... A: I am not sure what you mean by "winding up". If you are referring to the spiral arms, they do ... | |
| Shuttle Re-entry | 9/13/2007 |
| Q: Why do space crafts burn up on re-entry? I heard its to do with the high speed they reenter the ... A: Neil, thanks for writing. It is due to the friction of the high speed it runs into the air upon ... | |
| Gas giants | 9/12/2007 |
| Q: If it's really cold on Gas giants then is it possible that the planet can freeze and we can land a ... A: The gases in the atmospheres of Jupiter, Saturn, Uranus, and Neptune are Hydrogen, Helium, Nitrogen, ... | |
| Can we see ourselves in space? | 9/4/2007 |
| Q: Lets say I travel in space to a distant planet. It takes me 5 light years to reach there so the ... A: Daniel, thanks for writing. To look back at the earth and see yourself in the past, you would have ... | |
| man on moon | 9/2/2007 |
| Q: I see today Russia, china, India have all said they hope to have a man on moon by 2020 or so, my ... A: Steve, thanks for writing. I am not sure I know the complete answer to your question, but I have a ... | |
| space shuttle | 8/17/2007 |
| Q: The velocity variations of a space shuttle from launch to land. A: The shuttle goes from 0 at the launch pad to orbital speed (about 5 miles a second) in 9 short ... | |
| Space shuttle | 7/11/2007 |
| Q: What would the speed of the space shuttle be if it was flying at the altitude of a commercial ... A: It would depend on what the shuttle is doing. If it is about that height, preparing for a landing, ... | |
| life without water | 7/10/2007 |
| Q: you know i may be naive but why is it that we search for water to try and find signs of life on ... A: Water is used as a solvent in the cells of life as we know it, with suitable chemical properties ... | |
| asking Questions | 7/10/2007 |
| Q: 1.How will the space and planets appear when observed from Moon? 2.How will the space appear when ... A: 1/3. At a few hundred miles altitude, such as the shuttle, ISS (around 220 miles), Hubble Space ... | |
| asking Questions | 7/9/2007 |
| Q: 1.How will the space and planets appear when observed from Moon? 2.How will the space appear when ... A: 1. The sky is darker (and black in daytime, due to almost no atmosphere). The stars and planets are ... | |
| spacecraft | 7/8/2007 |
| Q: There is danger when the spacecraft enter the earth atmosphere and get extremely hot b'coz of the ... A: You're right. I was just referring to the energy to get the spacecraft itself into orbit (and ... | |
| spacecraft | 7/7/2007 |
| Q: There is danger when the spacecraft enter the earth atmosphere and get extremely hot b'coz of the ... A: The amount of energy required to bring the shuttle or any other craft to a stop is the same as the ... | |
| spaceflight | 7/6/2007 |
| Q: Why does it take two days for a spaceship to reach the ISS? A: One might think that the shuttle could simply get into orbit (in about 9 minutes) and immediately ... | |
| asking Questions | 7/3/2007 |
| Q: 1.What are the instruments taken to the moon by satellites to view the outer space? 2.Can we view ... A: 1. most instruments taken to the moon are for moon studies. When we are back on the surface, ... | |
| Antigravity drive | 7/3/2007 |
| Q: Lets assume that Antigravity drive has been built successfully. Theoritically, this antigravity ... A: First, we are a long way from antigravity. Second, there is gravity everywhere-we have the ... | |
| Space station potential amplitude | 6/12/2007 |
| Q: I have read that the magnitude of a full moon is a bit below -12. What is the highest potential ... A: It gets about as bright as -1 magnitude. Although not as bright as Venus (around -4), it is quite ... | |
| MOVEMENT | 5/20/2007 |
| Q: IF THERE IS NO BASE IN SPACE HOW MOVEMENT POSSIBLE IN SPACE?SIR,IN NORMAL CASE IT IS POSSIBLE TO ... A: Usually movement is done by pushing or pulling against another object (such as a wall or some ... | |
| 50-cent wire | 5/7/2007 |
| Q: what is a 50-cent wire, and could you explain to me about how one of those would break down, and ... A: I was just mentioning that the wire that shorted out in the Apollo 13 explosion cost 50 cents, ... | |
| Moon Missions | 5/6/2007 |
| Q: Can you tell me some problems that occur during space travel to the moon, and some that are fixible ... A: Sarah, thanks for writing! That question would literally take several large books to answer, seeing ... | |
| space craft | 4/26/2007 |
| Q: can we use nuclear powered ships for exploring space? detail A: The technology is available for nuclear fission, and tests are planned, I believe, for feasability, ... | |
| question | 4/6/2007 |
| Q: can an Indian be a member of NASA'S mission which is targeting to send humans to moon? A: I am not aware of any requirements as far as ethnicity/nationality when it comes to the space ... | |
| science | 3/30/2007 |
| Q: how many days does it take for the earth to spin on it's axis A: The day on a planet is defined by its rotation period, so it takes 1 day (24 hours) for the earth to ... | |
| Earht-Moon Time | 3/29/2007 |
| Q: I am curious about how long, from take-off to landing, it would take a crew to go from the surface ... A: The earth-moon time depends on the speed the rocket is going. The 7 Apollo crews went the distance ... | |
| mach | 1/19/2007 |
| Q: what is the speed of mach 1. A: Mach 1 is the speed of sound. In 68 degrees F. dry air, it is 770 miles per hour. It depends on ... | |
| Rocket escaping gravity | 12/20/2006 |
| Q: what are the ingredients that make the engine thrust?What are some of the physics(atoms,force) in ... A: The thrust is made of fuel and an oxydizing agent. The fuel can be kerosene (Apollo), a solid fuel ... | |
| Rocket escaping gravity | 12/19/2006 |
| Q: What are some of the physics(atoms,force) in simple terms behind a rocket escaping gravity? In other ... A: We use the Newton law of motion that a force (engine thrust) in one direction causing a force ... | |
| expansion & cooling | 12/11/2006 |
| Q: If heat is defined as "energy in transit", and everything in the universe is accelerating, why it it ... A: The universe is getting cooler since the constant heat is spread over an increasingly larger area. ... | |
| people in space | 11/29/2006 |
| Q: but when the astronaut moves around and pushes himself from one place to another then he should ... A: Question 1-right. For that reason, the astronauts have to either be tied to the spacecraft with a ... | |
| people in space | 11/29/2006 |
| Q: How come that the astronautes that go up in space, and the shuttle goes around the world in every 90 ... A: If you travel real fast, and something else (such as the air) doesn't, then you can be pushed away ... | |
| Speed to escape gravity on Earth | 11/21/2006 |
| Q: I recently read that the ~ speed to escape gravity from the surface of the earth is 11 km/s but I'm ... A: First, no matter how long you propel a rocket below escape velocity, it will eventually fall. At ... | |
| Space | 11/20/2006 |
| Q: How cold is it in space? A: It all depends on where you are. In earth orbit (or on the moon), the sunlit side is about 250 ... | |
| galaxys | 11/8/2006 |
| Q: hey man so i foudn out that there are like thousands of galaxys now has NASA ever went to one or ... A: Even the nearest galaxy (Andromeda M31) is so far away that at the speed of light (to the MOON in a ... | |
| enviromental impacts | 11/7/2006 |
| Q: What are the negative impacts that space exploration has on our enviroment? A: Answer-little or none. For about 8 minutes per launch, there is some rocket exhaust (some is ... | |
| aircraft/spacecraft | 9/20/2006 |
| Q: How long before we produce an aircraft that lifts off by traditional means but transcends ... A: The technology is there, but, I'd assume for reasons for economy/speed/etc., the rocket ascent is ... | |
| ??? | 9/14/2006 |
| Q: I am 39 years old next month and I know very little about space, and propulsion and so on – but I am ... A: 1. Nobody knows, but most astronomers believe there is some intelligence out there, with our Sun ... | |
| plasma energy | 9/14/2006 |
| Q: possgvrf1ible application for spacecraft propulsion. how many years distant. also, worm holes, if ... A: Worm holes will probably be proven by theory in 10 years or so. The potential for travel is ... | |
| rocket speed to escape gravity | 9/7/2006 |
| Q: What is the necessary speed for a rocket/shuttle to escape earth's gravity? A: To escape earth to get into orbit, about 17,000 miles per hour (at the altitude of the shuttle, ... | |
| mars exploration | 9/4/2006 |
| Q: sir, can i know the totsl number of space probes sent to mars?? please mention the names of the ... A: A website, http://mars.jpl.nasa.gov/missions/log/ has all the past and current probes, dates, and ... | |
| science | 8/3/2006 |
| Q: what is black hole and comets A: A black hole is when a larger star (about 8 times the weight of the sun, or 8 million times that of ... | |
| Anti-Gravity aircrafts | 7/16/2006 |
| Q: When i was browsing about the future of space aircrafts, i came across this Anti-gravity aircrafts. ... A: To my knowledge, there is currently no anti-gravity in current experiments, although perhaps in some ... | |
| scope of computer science in this field | 7/4/2006 |
| Q: ya i m asking that since i am an engineering student .what else i should do to enter this field. i ... A: This is a bit out of my field, but to learn more about the space program (and there should be links ... | |
| space shuttle speed | 5/18/2006 |
| Q: what is the average speed of the space shuttle traveling from the earth to the moon? A: First, the space shuttle is not designed or is able to go to the moon. It travels around the earth ... | |
| centripetal force | 5/7/2006 |
| Q: in fact, you believes then, we cannot explain to himself alone only speculate in favor of that: ... A: Yes, this is strange. Something quite catastrophic obviously happened in the past. In the early ... | |
| centripetal force | 5/5/2006 |
| Q: if centripetal force = mv^2 / r, where m = mass, v = velocity and r = radius -how we can explain ... A: I believe, if I remember correctly, some theories about some mass hitting Venus and causing it to ... | |
| formation of solar system | 3/30/2006 |
| Q: How did the solar system form? A: Scientists think that a previous star (or 2) blew up (supernova) and provided our area with the ... | |
| supernova | 3/22/2006 |
| Q: Can you explain what a supernova is and if one will occur on earth in the near future? A: A supernova is when a large star (about 8 or more times the mass of the Sun) runs out of fuel and ... | |
| manned flight to mars | 3/1/2006 |
| Q: With our current technology how long would it take to get to mars, from the closest position mars ... A: There are a lot of variables to answering that question, including the trajectory (path chosen), ... | |
| project for school | 2/20/2006 |
| Q: These questions are for a school project 1)What is your typical day like? 2)Of all the things that ... A: Jacob-thanks for writing! I'm actually not a salaried employee of the space program. I'm an ... | |
| Space Exploration | 2/15/2006 |
| Q: What are the risks of Space Exploration? A: Alex, thanks for writing! The main risks of space exploration are the liftoff and reentry/landing. ... | |
| thrusters in space | 1/29/2006 |
| Q: How do thrusters work in the vacuum of space when there is no air to push against..every action has ... A: Yes, that equal and opposite reaction law of Newton's is why. If you have thrust in one direction, ... | |
| aging in outer space | 1/10/2006 |
| Q: my son and i have searched the net and cant find a difinitive anwser to the question 'do you age ... A: Being away from the earth doesn't affect aging, but, according to Einstein's theory of relativity, ... | |
| Space travel | 1/2/2006 |
| Q: ’m currently involved in a “discussion� with a friend. If you folks could help us out, it ... A: Yes, your figures are fairly correct. At 95% light speed, the nearest star, Alpha Centauri (4.3 ... | |
| space suits | 12/20/2005 |
| Q: why are they white and not another colour?? A: I am not sure, but I would figure it would have something to do with the fact that, in orbit or on ... | |
| In Future Astroids are going to hit us??? | 12/18/2005 |
| Q: Is it ture that Astroids are going to hit us in future and they are going to bring a Global ... A: Faraz, thanks for writing! Yes, it is just a matter of time that a rock (asteroid) or ice block ... | |
| Angles | 12/9/2005 |
| Q: What is the difference between the length of the solar day and the sidereal day? and how can we find ... A: Jeff, thanks for writing. The sideral day is 4 minutes shorter than the 24 hour solar day, due to ... | |
| space travel | 12/4/2005 |
| Q: What is a light year A: Joel, thanks for writing! A light-year is the distance that light travels in a year--almost ... | |
| Items starting with q's | 11/20/2005 |
| Q: What space exploration topics start with a "q" ? (e.g., rockets, flights, etc.) A: Marsha-thanks for writing. Try quasar, quadrant, Quadrantids, quantum (efficiency, mechanics, ... | |
| Presentation Help | 11/2/2005 |
| Q: I don't know if you can help me or not but this was hte best catgory I could find. Recently I did a ... A: If you have a printer with your computer, there are photos of Mars at various NASA websites, ... | |
| Moon | 10/25/2005 |
| Q: Does the moon rotate on it's own axis? A: Cullen-thanks for writing! Yes, the moon rotates on its axis at the same rate as its revolution ... | |
| How many are still alive | 10/4/2005 |
| Q: Of all the members of the various United States space missions Mercury, Gemini and Apollo how many ... A: I was unable to find directly a list of ones living and deceased of the 3 programs, but if you will ... | |
| astronomy | 9/17/2005 |
| Q: can you go over this possible outlien please?/ You are driving in your car down a dark road late ... A: I believe this second one is the same? One more thing-the meteorite was confirmed to be from Mars ... | |
| astronomy | 9/17/2005 |
| Q: can you go over this for me and make changes and add to it please? thanks! Possible essay outline ... A: A few things you could also mention include the sighting of canals on Mars by Shaperelli (sp?) and ... | |
| astronomy | 9/17/2005 |
| Q: --thank you so much! Can you please add more to it?HI expert! I'm doing a beginners course on ... A: OK-current research in finding alien life: 1. studying extremophiles on earth-where life is on earth ... | |
| astronomy | 9/16/2005 |
| Q: I'm doing a beginners course on astronomy and I was wondering if you know some information about ... A: This is an essay that the world's leading astronomers would also like to write! As of now, there is ... | |
| space physics | 9/11/2005 |
| Q: i came to know by some news papers that the Universe is expanding in it's way. my question is IF ... A: Everything in the sky, except for the planets/sun/moon, is so far away that their motions are not ... | |
| HST & UV astronomy & STIS | 9/8/2005 |
| Q: Could you please help me with this? I have heard that Hubble works simultaneously with other scopes ... A: Leila! Yes, a lot of objects get observed from various viewpoints and frequencies by coordinating ... | |
| Hubble Space Telescope | 9/4/2005 |
| Q: I thought it might be good if I post my question here as well as mail! So could please help me with ... A: One more thing-there is more light up there (some is lost through several miles of air) and we are ... | |
| Hubble Space Telescope | 8/29/2005 |
| Q: I am an astronomy student studying at Swinburne University of Technology, Melbourne, Aus. I am doing ... A: Greetings from Northeast Arkansas, USA. I have a cousin who used to live in Alice Springs, ... | |
| Shuttle Re-entry | 8/19/2005 |
| Q: Why cant the shuttle go slow through the atmosphere therefore not creating the intense heat and ... A: The shuttle has to enter the atmosphere at a certain angle, with little room for error. If it ... | |
| space exploration | 8/14/2005 |
| Q: How are astronauts able to reference their position since they aren't able to use north, south, ... A: The ISS and the shuttle would, I'm sure, have a display showing their position on the earth. It is ... | |
| space shuttle speed | 8/9/2005 |
| Q: When the shuttle is orbiting say 17,000 miles per hour around the earth is the shuttle actually ... A: The 17,500 MPH the shuttle is traveling (approximate-depends on altitude)is in relation to the ... | |
| Space Shuttle reentry | 8/8/2005 |
| Q: I am 8 years old and live in Fresno, CA. I am wondering if I will be able to see the space shuttle ... A: again! It looks as if they may land in Calfornia. The shuttle will move from Southwest to ... | |
| Space | 7/30/2005 |
| Q: 1...What does the universe look like beyond the limits to our visible universe? Answer - Hi, ... A: This is a very complicated question. It would depend on 1. where you are at, and 2. what type of ... | |
| common housefly in zero gravity | 7/29/2005 |
| Q: what would happen to a common housefly if released in a zero gravity environment? Could it fly? ... A: I'm sure that experiment has been done and insects have been carried into space (I believe some have ... | |
| external fuel tank | 7/28/2005 |
| Q: I was just wondering where does the external fuel tank go after it separates from the space shuttle ... A: After liftoff, the solid rocket boosters parachute to the ocean, where they are recovered and reused ... | |
| Shuttle orbits | 7/26/2005 |
| Q: Why does the shuttle need 2 days in orbit before it reaches the space station ? Why not go directly ... A: One of the requirements of the Columbia accident investigation is to both launch and dock in ... | |
| Space physics | 7/16/2005 |
| Q: is elastic still elastic in space? I know I could lift a thousand pounds as if it were nothing in a ... A: Elasticity is in the molecular structure/behavior of the substance. Therefore, an elastic substance ... | |
| space navigation | 7/7/2005 |
| Q: the deep space probe was an awesome spectacle and a testament to the people who designed and built ... A: On the spacecraft are sensors that are locked on certain navigational stars. This keeps the ... | |
| outer space | 7/5/2005 |
| Q: Is there enough natural light for a person to read a book on the moon,whilst outside the space ... A: Moon/shuttle: certainly-it's brighter than on the earth (about the same sun distance, but no air. I ... | |
| Questions on NASA crew and the earth's sky | 6/29/2005 |
| Q: It's interesting that you mentioned about wormholes and I'm planning to use something similar like ... A: 1. The recent test flight of an ion (plasma) engine has been successful-another slow but long-term ... | |
| space navigation | 6/27/2005 |
| Q: Because of the vast distances of space how would a ship accurately navigate his way(from earth)to ... A: Let me use the Deep Impact spacecraft, which will hit a comet (Tempel I) this Monday morning, as an ... | |
| Questions on NASA crew and the earth's sky | 6/27/2005 |
| Q: I would like to point out that I'm an aspiring science fiction writer and I like my stories to obey ... A: A lot of the answers depend on a number of variables, mainly-how far out of the solar system are you ... | |
| Questions on NASA crew and the earth's sky | 6/26/2005 |
| Q: The NASA shuttle crew is comprised of seven people and that every position has a specialty. 1) But ... A: The positions may vary a bit with flight, but the return to flight crew consists of a Commander ... | |
| When exactly will we see Haley's... | 5/23/2005 |
| Q: When exactly will we see Haley's Comet in Egypt,in Cairo A: Halley's Comet travels around the sun in 76 years, so the next time it is visible will be in 2081 or ... | |
| Mars | 5/19/2005 |
| Q: Is Mars livable and could it be some day? A: I spoke to Steve Squires, the head scientist for the Mars Rovers, a few weeks ago by phone. The ... | |
| Final orbit of Cassini | 5/7/2005 |
| Q: Renshaw: I went through the usual channels in asking this question. No one at NASA has time to ... A: The four year, 74 orbit mission of the Cassini is simply the time the primary mission is funded. ... | |
| the suface og Saturn | 5/2/2005 |
| Q: i am a grade 6er, i wounder what does the surface of saturn look like, and made out of? thank you A: Saturn actually doesn't have a surface. It is a gas planet. It is made of gas; and the further you ... | |
| Equations of Motion in Space | 4/28/2005 |
| Q: If a rocket breaks free from the Earth's gravitational field by attaining the necessary escape ... A: It has been a long time since I had these formulas--I assume that v is velocity, a is acceleration, ... | |
| Where? | 4/26/2005 |
| Q: I understand our milky way galaxy is part of a "local cluster" of galaxies. I also understand our ... A: Yes, those are the 2 Voyager spacecraft. The universe is so vast that, even at several miles per ... | |
| have you ever been in space? if... | 4/19/2005 |
| Q: have you ever been in space? if you have tell me all about it. if have't please give me a persons ... A: No, (unfortunately) I have never been in space. I understand that there is nothing quite like it ... | |
| JPL occupation | 3/20/2005 |
| Q: I have wanted to get a job at JPL for a long time, But I have some questions about it. I am still ... A: As I am a JPL/NASA volunteer, not an employee, I can only give general suggestions. Take all the ... | |
| Space travel | 2/15/2005 |
| Q: Hypothetical question, if a space ship travelling at the speed of light switched on its headlights, ... A: This may defy any logic, but according to Einstein's special theory of relativity, no matter what ... | |
| planet. | 12/23/2004 |
| Q: WHAT IS THE NEW PLANET. A: Not sure what you are talking about-could you explain? There are almost constantly new planets ... | |
| space sheep accidents | 12/7/2004 |
| Q: I wonder what happened to an astronaut that detached from the space sheep, while he walks out of ... A: You and the movies are more correct-he would just float out and away from the spacecraft. At ... | |
| Spacesuits | 11/11/2004 |
| Q: and there are some specific questions I'd like to ask about spacesuits. How does one put on a ... A: I'm not an expert on suits, and suits come in quite a variety, depending on function. I believe a ... | |
| big bang theory | 10/8/2004 |
| Q: sir, is the big bang theory true? if is plz give me a proof.. is there any theory ... A: Noone, of course, has any absolute proof of an event about 14 billion years ago. Personally, I ... | |
| Travel Distance | 10/5/2004 |
| Q: in light of a SciFi story I'm working on, I was wondering how long it would take for a spacecraft ... A: It depends on the size and conspicuousness of the civilization. A small group could conceivably ... | |
| Achieving orbit. | 10/3/2004 |
| Q: I am following the SpaceshipOne exploits with a good deal of interest.One question I would like an ... A: I am not that familiar with the capabilities of the private craft, but I believe it is just designed ... | |
| Nuclear power in space | 10/2/2004 |
| Q: Im not a very smart person. Can you explain in laymans terms, why nobody has nuclear powered ... A: First of all, you are very smart-that's a good question. In a way, we do have nuclear powered ... | |
| Space travel | 9/29/2004 |
| Q: Do you think that you could weld a space ship out of metal, and put a capsule in it to where the ... A: I am not exactly sure what you mean by capturing electricity by this means (perhaps getting some ... | |
| SPACE SHUTTLE MOVE | 9/27/2004 |
| Q: ------------------------- Followup To thanx for the detailanswer but still i have to understand ... A: When a rocket fires (to change direction or speed while in orbit, to get to orbit, or any other ... | |
| SPACE SHUTTLE MOVE | 9/24/2004 |
| Q: PLEASE TELL ME HOW SPACE CRAFTS MOV IN THE SPACE BECAUSE THERE IS NO AIR OR ANY OTHER MEDIA ... A: One of Newton's laws (I forgot which) state that with an action, there is an opposite and equal ... | |
| Black Holes | 9/7/2004 |
| Q: Im a 16 year old high school student who loves philohosphy, and physics with a great passion. As I ... A: Time and space travel with black holes is only theoretical at this point, with no way with current ... | |
| Daark matter | 9/4/2004 |
| Q: Does dark matter only surrond the earth ? A: Dark matter is something that is found throughout the entire universe. There is probably little in ... | |
| The Cassini Mission | 8/22/2004 |
| Q: Has The Cassini Mission launched in 1997 reached Saturn and do you have any good interrnet sources ... A: Rob-thanks for writing. Yes, Cassini reached Saturn July 1 of this year, passed through the rings ... | |
| Light year | 8/12/2004 |
| Q: If a spaceship could travel at the speed of light, how long would it take to reach a star 8 light ... A: A light-year is the distance light travels in a year (almost 6 TRILLION miles. The moon is only ... | |
Space Exploration
Answers by Expert:
Kenneth Renshaw
Top Expert on this page
Expertise
Answer basic space flight questions, research info on specific space flights. Answer questions on astronomy
Experience
Amateur astronomer and avid astronomy/space flight fan for 31 years.
Organizations
Official NASA/JPL Solar System Ambassador for Arkansas and Missouri (one of about 300 nationwide). (http://www2.jpl.nasa.gov/ambassador/profiles/Kenneth_Renshaw.htm)
Publications
Numerous local and area newspapers.
Education/Credentials
AA/BME/MME
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