| Subject | Date Asked |
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| Space Travel | 11/22/2009 |
Q: How will space travel/exploration change in future? what problems exist in space exploration? what ...
A: We will develop faster and faster propulsion systems, perhaps ion drive and eventually fusion power ...
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| Terraforming of Mars | 11/20/2009 |
Q: Just seen a program on the terraforming of Mars. Mentioned that it would take hundreds of years to ...
A: Yes, that's a very interesting concept for the future... it's been on the drawing boards for at ...
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| View from Venus | 10/31/2009 |
Q: I'm trying to write a story set on Venus and I was wondering about this: If Venus had the same ...
A: I'm sure that it can be figured out mathematically, but I'm no math major. However, I can estimate ...
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| binary stars and associated planets | 10/25/2009 |
Q: I am trying to write a book about a planet that is in a binary system. I would like the ...
A: Well, almost anything in the science fiction mode can be made viable one way or another. This is ...
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| Space Travel Speeds | 9/7/2009 |
Q: I am just wondering what the current speeds of space travel a human can endure or at least has ...
A: I'm afraid I don't have a crystal ball either; (I don't know the future anymore than you do). Our ...
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| space probe missions | 7/27/2009 |
Q: My six year old son would like to know why it takes so long for the space probes to reach the ...
A: Very good question. All the different types of rocket propellants are listed on ...
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| I am completly stumped by this question | 7/17/2009 |
Q: So im trying to figure out why we brought cameras to the moon our first time there but on three ...
A: I've seen several clips of each of the Apollo 12 thru 17 missions, although admittedly it's been a ...
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| planet | 7/15/2009 |
Q: why particles around saturn planet are moving but not other planet do like that
A: But they do have particles and rings around them...Uranus has at least 9 rings, Neptune has 3 ...
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| Impact of space travel on Earth | 6/16/2009 |
Q: What impact could continuous space travel have on the Earth?
A: The short answer is...more and more improvements on our lives here on Earth. The more we travel out ...
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| shuttle landing | 5/24/2009 |
Q: I've watched several shuttle landings on the NASA channel and something always occurs that I am ...
A: The announcer is correct about the shuttle carrying a little extra energy (extra altitude and ...
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| mars encounter with earth | 5/21/2009 |
Q: what are the facts about 27th august 2009 mars getting closer to earth ..and what size will it b ...
A: I see the annual August Mars hoax letter is back...happens nearly every year. The truth is, on ...
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| going faster in space travel | 5/11/2009 |
Q: I know as we advance in space travel, we will go faster and faster, but when we finally learn to go ...
A: I haven't seen the new Startrek movie as yet, but I do follow the TV series and I've seen the other ...
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| space exploration | 4/30/2009 |
Q: what is the amount of G's that you under go when leaving the earths atmosphere? And what kind of ...
A: Any of us pilots out of USAF flight school can handle upwards of 6 g's in a pull out from a dive, ...
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| project | 4/29/2009 |
Q: what are some things that people are worried about the space program like the exaust and what it is ...
A: The byproducts of the exhaust from the 5 minute launch (about once every 2 months) are all mostly ...
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| ageing | 4/26/2009 |
Q: Greetings I read that being on a mountain increases the aging process Now - why then does the aging ...
A: Yes, in one case,.... you are confusing the passage of time due to the curvature of the spacetime ...
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| ORBITAL MECHANICS paper presentation | 4/8/2009 |
Q: "Dear sir, I am Sai an Aerospace engineering(Flight dynamics and controls) student doing my ...
A: Well, this is a little out of my field, but perhaps there is an interesting long range problem you ...
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| From gravity to zero gravity.... how quick does this transition happen? | 3/23/2009 |
Q: From gravity to zero gravity.... how quick does this transition happen? can you help please? And ...
A: It's not only the Earth's gravity, it's the acceleration up to orbit too. So the astronauts are ...
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| If we landed on the moon? | 3/10/2009 |
Q: If we really landed on the moon how come there were no stars in the background? If we did it once ...
A: It's not hard...but it's very expensive, no matter what you use.We DID go to the moon more than ...
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| Nuclear Explosions in space | 3/6/2009 |
Q: I'm just curious and wantede to ask someone who might know. If you were to explode a nuclear bomb in ...
A: In reverse order, there is no harm to the surface of the Earth by a detonation in space, except to ...
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| Nuclear Explosions in space | 3/5/2009 |
Q: I'm just curious and wantede to ask someone who might know. If you were to explode a nuclear bomb in ...
A: That idea was first proposed about 40 or 50 years ago on paper. I don't remember the name or shape ...
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| space craft propulsion. | 3/5/2009 |
Q: How you doing. i was wondering if you can help me with a simple question relating to space ...
A: The drawbacks that plague nearly all self-contained propulsion systems is that you have to haul the ...
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| Adapting to space | 2/28/2009 |
Q: i'm interested in any info on- or off-line re current efforts(whether successes or failures) to make ...
A: First, we don't and can't 'adapt' a human body to space itself (or any body in space that doesn't ...
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| The view from the edge of the solar system | 2/12/2009 |
Q: .. Just wondering... if a ship (Voyager, or Pioneer, or another) reached the edge of the solar ...
A: No, actually you would see...very little from the real edge, definedas the heliopause out there some ...
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| gravity | 1/16/2009 |
Q: If a rocket is launched from appoint under the earth by 4 example 40 km did the energy consumed will ...
A: Yes, but while the mass decreases slightly, so does the distance component squared (distance between ...
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| gravity | 1/15/2009 |
Q: If a rocket is launched from appoint under the earth by 4 example 40 km did the energy consumed will ...
A: I don't know the exact arithmetic behind it, but yes, the lower you are, the more energy it takes to ...
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| Artificial Gravity | 1/9/2009 |
Q: I had a question pertaining to artificial gravity in space. I know that proposed space stations can ...
A: Yes, on systems like space stations that can spin, AND you are living on the inside of the outer ...
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| New Horizon vs Voyager | 1/3/2009 |
Q: When is the approximate time that New Horizon will catch and surpass Voyager and how well will New ...
A: If the New Horizon spacecraft were following the same trajectory as the Voyager 2 spacecraft (it ...
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| Nibiru claims | 12/28/2008 |
Q: I would really like your insight into the "Planet X" or "Nibiru" claims going around at the moment, ...
A: It's all bunk, as is our alleged double star companion Nemesis...all that stuff would have been long ...
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| speed of light | 12/21/2008 |
Q: how far does light travel in one second? how many miles in a light year?
A: In reverse order, there are about 5.8 trillion miles in a lightyear. The exact answer can be found ...
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| Fleck of Paint | 11/16/2008 |
Q: Explain why a fleck of paint in outer space can cause a lot of damage.
A: Because, recall your basic kinetic energy formula, KE = 1/2 m v squared. So in space, where ...
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| space | 10/7/2008 |
Q: How far is Pluto away from the other planets as it orbits
A: Pluto, currently the 2nd largest asteroid in the Kuiper Asteroid Belt (Eris is bigger)...orbits the ...
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| my questions | 8/31/2008 |
Q: Hey Tom. Ive seen alot of pictures and videos taken by astronauts and was wondering why we cant see ...
A: The reason you don't see any stars in most of the pictures of the astronauts, either on the lunar ...
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| material used in astronaut helmets | 8/21/2008 |
Q: I have heard that 24 carat gold is used in some portion of the astronauts' helmets. Is this true? ...
A: A very thin layer of gold (24 Kt is pure gold) is electroplated onto the inside helmet visor to ...
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| Sun vs. Stars | 8/18/2008 |
Q: How can we differentiate between the Sun (the center of our universe) and other suns? What criteria ...
A: The sun is not at the center of our Universe, or even our galaxy, the Milky Way. It is in the ...
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| Theoretical physics | 8/13/2008 |
Q: I was wondering if you could clear something up for me. I understand String theory and i understand ...
A: BTW, thanks very much for the great rating. The suggested multiple dimensions, I believe some ...
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| Theoretical physics | 8/13/2008 |
Q: I was wondering if you could clear something up for me. I understand String theory and i understand ...
A: Confirmation of the Higgs boson basically deals with the Standard Model of particle physics, in ...
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| space shuttle | 8/13/2008 |
Q: when we view the sky at a time that the space shuttle can be seen, what is moving , is it the space ...
A: Yes, yes, and yes...you are correct. The Shuttle is moving, the shuttle is in it's own orbit around ...
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| Space Exploration | 8/10/2008 |
Q: one of the advantages of space exploration that new materials are produced in zero gravity. can you ...
A: This is not one of my catagories that I know a lot about, but considering the infancy of the Space ...
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| gravity | 8/9/2008 |
Q: how far would you need to travel away from the earth in a straight line up before earths gravity ...
A: Technically, it never ends. It just gets weaker and weaker with increasing distance, but never goes ...
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| Centrifugal Force | 8/7/2008 |
Q: Is there centrifugal force in space? I was watching "2001: A Space Odyssey" and theres a scene where ...
A: Yes, centrifugal force exists anywhere, any time something is spinning. So yes, like in the movie ...
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| distance and time to mars from earth | 7/28/2008 |
Q: what is the distance in miles to mars from earth. what would be our traveling speed in getting to ...
A: Earth - Mars distance continuously varies as both planets orbit the sun. And so does the "traveling ...
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| Furthest from Earth | 7/17/2008 |
Q: What/where is the furthest man made object in space. If this is a ‘voyager’ type object is it still ...
A: Oh, I think every good question deserves a good answer. The NASA DSN (Deep Space Network) consists ...
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| Furthest from Earth | 7/17/2008 |
Q: What/where is the furthest man made object in space. If this is a ‘voyager’ type object is it still ...
A: The most distant craft is, as you guessed, Voyager 1 at a solar distance of 106.9 AU, and 106.3 AU ...
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| nasa astronaut helmets | 7/15/2008 |
Q: what are the visers made of? and what would happen if a small object that escaped from the ship, ...
A: The incidence of micro-meteroid hits are extremely rare, so rare that the entire ISS may have been ...
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| Glass window on Space shuttle | 7/14/2008 |
Q: I noticed shuttles have glass windows for the astronauts to see outside. Without the heat shield ...
A: Only the underside of the space shuttle is subjected to the very high re-entry temperatures, and ...
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| nasa astronaut helmets | 7/14/2008 |
Q: what are the visers made of? and what would happen if a small object that escaped from the ship, ...
A: Not sure, but I believe the astronauts helmets are constructed of the same transparent plastic ...
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| moon landing | 7/12/2008 |
Q: Until recently after viewing dozens of videos I feel after watching offical videos and youtube ...
A: Rich, If you research it, you would find that all flags posted on the moon were spring loaded with ...
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| moon landing | 7/11/2008 |
Q: Until recently after viewing dozens of videos I feel after watching offical videos and youtube ...
A: Yeah, we really faked that one with all 400,000 people involved in Apollo, sworn to total secrecy ...
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| Feasibility of space exploration on humans | 7/9/2008 |
Q: What possible insights could you offer on the effects on humans in long term missions, poss. ...
A: nice to have a "matter of opinion" question occasionally; I can't be 'wrong'. ;-) Well my opinion ...
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| life on Mars, etc. | 6/26/2008 |
Q: We see all the movies of finding life on Mars, but I was wondering what NASA would do if we did find ...
A: First, carbon-based life cannot presently exist on Mars...we already know that, for many reasons; ...
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| weightlessness | 6/4/2008 |
Q: when leaving the earth's atmosphere, do astronauts experience weightlessness immediately, or is it a ...
A: It's not the atmosphere, as you probably know; this planet would still have the same gravitational ...
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| Ageing in outter space | 5/13/2008 |
Q: I understand the difference between aging in outter space because of the whole speed thing. But if i ...
A: It's not exactly the 'whole speed' thing, it's the "time" thingy... but DUE to the high speed. In ...
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| odds | 4/29/2008 |
Q: What are the odds of dying in space?
A: Hula, I guess the easy answer is....50-50; you either do, or you don't. Technically, no one has ...
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| trip from earth to the moon | 4/17/2008 |
Q: at current speed of space vehicle, how long would it take to get to the moon and at what speed
A: We currently have no vehicle that is capable of lunar travel. The Space Shuttle is only designed as ...
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| Advantages and disadvantages | 4/16/2008 |
Q: What are some advantages and disadvantages of space exploration? Can you give me some helpful ...
A: Yes, there is a website at: http://www.thespaceplace.com/nasa/spinoffs.html The website above, plus ...
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| Outside solar system exploration | 4/3/2008 |
Q: What is the cassini mission ? When did it started ? Where is it now ?
A: The Cassini mission to orbit Saturn (which followed the Galileo mission to orbit Jupiter, now ...
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| Pluto | 3/31/2008 |
Q: Why isn't Pluto considered a planet anymore?
A: Turns out that Pluto is just one of thousands of small bodies, called asteroids, in a major Asteriod ...
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| the first moon landing | 3/27/2008 |
Q: I'm doing a report in history about the first moon landing. I was wondering if you could suggest ...
A: Easy....simply go to Google (or your favorite search engine) and type in "First moon landing 1969" ...
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| travel to pluto | 3/14/2008 |
Q: what is the fastest time a manned spacecraft could get to pluto if its maximum speed was the maximum ...
A: We're already doing it unmanned with the New Horizons Spacecraft, launched January 2006, arriving ...
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| Vacuum | 3/12/2008 |
Q: In an earlier Q&A you mentioned people need a space suit to survive in the vacuum of space. As I ...
A: Well, space is not a "perfect" vacuum...from what I've read there is about one hydrogen atom per ...
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| Eco space | 2/27/2008 |
Q: i hope you are well, and the answers you provided me with previously have been a great help. My ...
A: Rebecca, Well, I think in these early stages, and we will be early stage of space travel for the ...
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| space exploration | 2/23/2008 |
Q: HOW DO I GET THE HISTORY OF SPACESHPS & SPACE EXPLORATION
A: A., Simply Google the same, A History of Spaceships or "A History of Space Exploration" and a whole ...
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| sun lights vs star light | 2/22/2008 |
Q: if the sun is a star, why is it the only star that appears to emit yellow light vs the billions of ...
A: Good question...it shows the human limitation of seeing color under very dim light conditions. All ...
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| space | 2/21/2008 |
Q: why we have to study about space?
A: You don't have to...you can just stay in bed all day long, or play your computer games all day long, ...
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| moonlanding 1969 | 2/1/2008 |
Q: Have you seen a documentary called "The darker side of the moon"? It´s very interesting. If they ...
A: No I haven't, and as I don't doubt the SIX moon landings, I'm not a member of any conspiracy ...
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| science | 1/28/2008 |
Q: Do we need to wear special cloth in space? why?
A: Yes, any living organism has to have a space suit on, as the lack of pressure on our bodies means ...
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| science | 1/28/2008 |
Q: can we go to space? how?
A: Space is not a "location"....space is everywhere. Anything that is not matter, is considered space. ...
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| Universe | 1/26/2008 |
Q: If the Earth was anialated along with all its people . The Universe would still continue to exist ...
A: Well, the big law of nature is gravity, which controls all of the Universe. Others would be ...
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| Space 2013 | 1/23/2008 |
Q: my name is Rebecca and am looking for someone who is a passionate space follower who could possibly ...
A: Well I don't have a crystal ball to predict what we'll be doing 5 years from now, but if you have ...
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| deep space probe? | 1/13/2008 |
Q: I would like to know the name of and the year the deep space probe was launched to find ...
A: The mission you are referring to is the Voyager I and II missions, launched from Cape Canaveral on ...
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| Planet X | 12/30/2007 |
Q: I read where NASA discovered Planet X in Dec. 1983 with the IRAS telescope. The story was published ...
A: Nice to have a "matter of opinion" question on occasion, then I can't be wrong, can I, Eh? ;-) I am ...
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| Orientation in space.... | 12/25/2007 |
Q: My question pertains to the numerous images that we, the layman is shown of deep space objects such ...
A: Good question, but difficult to answer, as you'll see below. Well, first, all those pretty deep sky ...
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| collision course | 12/14/2007 |
Q: and thank you for your time.if there was a object in space,how will scientist go about to dertermine ...
A: It's fairly complicated because it involves a lot of orbital parameters, since space is 3-D and ...
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| Space and the body | 11/8/2007 |
Q: If a corpse was released into space and not in a space suit, what would happy to the body? My ...
A: Ok, understand that there was no bet on...and Thank You very much for the very nice comments too. ...
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| Propulsion in a vacuum | 10/7/2007 |
Q: I have been up all night debating how you can create a force in space when there is nothing for any ...
A: No need for a diagram, only an explanation. Your error is the assumption that with Newton's 3rd ...
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| official | 10/1/2007 |
Q: what is the minimum qualification to become an astronaut in NASA(2)what is the income per year at ...
A: I just googled "astronaut requirements and pay" and all sorts of good websites come up...I found the ...
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