The event,on July sixteenth, was a rare chance for planetary scientists to share with the public the mysteries of Mars.

VOA: special.2010.07.28

Michael Drake is the Director of the Lunar and Planetary Laboratory at the University of Arizona.

VOA: special.2011.06.22

Michael Meyer says planetary scientists often study processes that are very different from ones on Earth.

VOA: special.2009.12.30

We send these robots off as our little planetary emissaries to go and do the science.

VOA: special.2011.05.25

NASA says Kepler-11 has the fullest, most compact planetary system yet discovered beyond our own.

VOA: special.2011.02.09

And he says five of the planetary candidates are both close to the size of Earth and orbit in the habitable area of their parent stars.

VOA: special.2011.02.09

The team's findings are to be published in the journal Meteorics and Planetary Science.

VOA: special.2009.09.30

I'm a planetary geologist here at the Air and Space Museum.

VOA: special.2010.07.28

Jim Green is director of NASA's Planetary Science Division.

VOA: special.2009.09.30

(SPEAKING) "Avatar" created a new planetary experience.

VOA: standard.2010.03.11