AstronomyThe study of the universe and space, including planets, the solar system and comets
Maybe an asteroid wasn't to blame after all.
January 16, 2007 | By Bob Craddock
Claims of active flows on Mars are remarkable, but do they hold water?
January 2007 | By Bob Craddock
With the equivalent power of an electric can opener, engineers try to do more than scratch the Martian surface.
November 2006 | By Tom Harpole
Big distance, tiny spacecraft.
November 2006 | By Tony Reichhardt
Lunar explorers will have to battle an insidious enemy—dust.
September 2006 | By Trudy E. Bell
Two leading scientific experts debate whether eight is enough.
September 2006 | By airspacemag.com
Mars, Venus, Titan - wherever there's air, we can explore by balloon.
July 2006 | By Joe Pappalardo
We have the technology to send astronauts to Mars. But can we return them safely to Earth?
January 2006 | By John F. Ross
On an uncharted world, a little spacecraft saw a lot in a very short time.
November 2005 | By Tony Reichhardt
Enter Einstein's grand construct of gravitational wonders, and do not attempt to adjust your television set.
September 2005 | By Trudy E. Bell
If you want to see what's inside a comet, you've got to break some spacecraft.
May 2005 | By Tony Reichhardt
A mysterious force is tearing the universe apart!
March 2005 | By Ed Regis
Titan, the only major body in the solar system that we haven't gotten a good look at, is about to be outed.
July 2004 | By Craig Mellow
If we could see all the holes gouged in the Earth by asteroids, we'd run screaming for cover.
May 2004 | By Tony Reichhardt
Finding another Earth may be easier than the Kepler project's long quest for funding.
May 2003 | By Andrew Lawler
Launched 13 years ago, a rugged spacecraft send its last postcards from Jupiter.
September 2002 | By Tony Reichhardt
It may be Oklahoma, but this amateur-built observatory is all Texas.
July 2002 | By Eric Adams
We've done the moon. Mars is too far. There's a better destination in our own back yard.
May 2002 | By Thomas D. Jones
How a clever camera and its irascible inventor captured the lunar surface—but not the hearts of Apollo astronauts.
May 2002 | By Joseph Bourque
Space Shuttle launches must work like clockwork. Here is how the clockwork works.
March 2002 | By Eric Adams