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Astrophysics/planet x

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Expert: - 5/29/2007


Question
what do you know about the new planet x?

Answer
Hi Amal,

You're probably referring to the discovery in April of an "earth-like" planet about 20 light-years away.  More details can be found at http://www.nytimes.com/2007/04/25/science/space/25planet.html?ex=1335153600&en=6...

Although this was the first "earth-like" planet found orbiting a distant star, it's thought to be not that unusual.  Planetary formation is thought to be a normal part of star formation, and the majority of stars have planets - some larger, some smaller, some hotter, some colder than earth.  But many stars could have "earth-like" planets - they're just very difficult to see!

Hope that helps.

Prof. James Gort

Astrophysics

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James Gort

Expertise

Questions on observational astronomy, optics, and astrophysics. Specializing in the evolution of stars, variable stars, supernovae, neuton stars/pulsars, black holes, quasars, and cosmology.

Experience

I was a professional astronomer (University of Texas, McDonald Observatory), lecturer at the Adler Planetarium, professor of astrophysics, and amateur astronomer for 42 years. I have made numerous telescopes, and I am currently building one of the largest private observatories in Canada.

Publications
StarDate, University of Texas, numerous Journal Publications

Education/Credentials
B.A. Physics and Astronomy M.Sc. Physics Ph.D. Astrophysics

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