There may be water—and even life—in them there hills. 12.27.2011
While human explorers remain stubbornly stuck in Earth orbit, robotic space probes are preparing for the next great age of exploration: drilling, rolling, sailing, and prospecting where nobody has gone before. 10.31.2011
Putting people on a flying rock could be a good warm-up for the big prize: going to Mars. 05.06.2011
In a parched Nevada valley, scientists pursue miniature cousins of the whirlwinds that rage across the surface of the Red Planet. 01.31.2011
This year, space exploration will bring news of expeditions to distant planets, the quest for life-friendly star systems, and the bold efforts of commercial space companies. Here's a preview of what to look forward to. 01.06.2011
12.16.2010
Every year DISCOVER sorts through the scientific accomplishments of the past 12 months, and assembles a list of the coolest experiments, most brilliant discoveries, and most world-changing events. As you page through the countdown to the #1 science story, we think you'll come to the same conclusion we did: 2010 was quite a year. 12.16.2010
Is anything stirring on the dusty surface of Mars? A few bold scientists say we need speculate no longer: We have already found strong evidence of life there. 11.23.2010
The stinkiest moon, the deepest canyon, the most shocking lightning storm: A guided tour to the solar system's most extraordinary spots. 10.26.2010
Researchers go neutrino-hunting and penguin-watching at the South Pole. 02.25.2010
Could underground life be emitting methane clouds during warm periods? 01.25.2010
If fluid water does persist on Mars, life could be hanging on in thin layers of salty water just beneath the surface. 12.28.2009
For 50 years, artists have had up-close, insider access to the space program. Here are the results. 10.16.2009
The Fobos-Grunt mission might pave the way for humanity's first permanent space base—on Phobos, Mars' bizarre moon. 05.21.2009
A variety of new findings point to the "habitable zones" where we're likely to find extraterrestrials. 05.11.2009
The six-wheeled, plutonium-powered, car–sized vehicle aims to drill deeper and learn more. 01.26.2009
Finally, positive confirmation of what we long thought and hoped for 12.21.2008
After 30 years, the debate over the red planet's shape may be over. 12.11.2008
A comparison of landmark space pictures shows our imaging tech has improved in 40 years. A lot. 10.07.2008
Galileo may be science's most famous martyr, but it was Kepler who solved the mystery of the planets. 10.05.2008
Not quite—but some people pretend it is. 09.03.2008
Sandbot can scoot along any surface—including other planets. 06.04.2008
Phoenix gives the first-ever firsthand account from the surface of the Red Planet. 06.02.2008
Many landers have tried to touch down on the Red Planet. Few have succeeded. 05.22.2008
01.11.2008
Earthlings go to Mars-esque locales to prepare for the real thing. 06.21.2007
Requiem for the Mars Global Surveyor 03.14.2007
With the new Mars Reconnaissance Orbiter zeroing in on its target, NASA scientists prepare for an unprecedented look at the Red Planet's ancient seas and modern ice fields—key sites in the ongoing search for life. 10.10.2006
Michael Griffin is gearing NASA up to build a moon base. Is he paving the way to Mars or jeopardizing the future of American space exploration? 09.01.2006
New fossil analysis puts the beginning of life more than 3.4 billion years ago. 09.01.2006
Nearly 40 years after Apollo, Russia eyes moon tourists--and the Red Planet. 08.01.2006
Impossible Journey? 06.19.2006
Minerals suggest microbes once flourished. 04.24.2006
03.03.2006
NASA's latest manned rocket, Saturn's moons, comet smashing, and more. 01.08.2006
Will the European 2 Agency put astronauts on the Red Planet before NASA does? 11.22.2005
The red planet has plate tectonics. 10.25.2005
07.24.2005
05.01.2005
After dozens of missions and billions of dollars, NASA scientists are havin? surprisingly hard time agreeing on what the Red Planet really looks like 12.03.2004
11.25.2004
The search for life on Mars could be a bit complicated by the hitchhikers on our rovers 10.01.2004
08.02.2004
Does the secret of extraterrestrial life lie deep within the stars and planets? 07.25.2004
06.27.2004
What the team here at the Jet Propulsion Lab pulled off was magical. 06.27.2004
04.21.2004
Meandering channels provide evidence for the Red Planet's watery past 11.21.2003
11.10.2003
On Mars, NASA Seems to Be Brilliant 11.08.2003
Electroshock for a depressed space program 10.01.2003
Never again in your lifetime will the Red Planet be so spectacular 08.01.2003
08.01.2003
Dust devils were one of those scientific mysteries no one on Earth bothered to study until we figured out that they may control Mars's weather 07.01.2003
Europe's space program takes a step forward—in science and prestige. 05.01.2003
In a dozen years, NASA plans to bring Mars soil samples to Earth. No one is quite certain what to do with them when they get here 03.01.2003
11.01.2002
09.01.2002
05.01.2002
01.01.2002
Colors reveal what's brewing on other planets 12.01.2001
11.01.2001
10.01.2001
Chunks of planets were flying all over the place when the solar system was young—and some may have carried hitchhikers 08.01.2001
Busting the myths about Mars 06.01.2001
06.01.2001
02.01.2001
A preview of the coming year in astronomy, ready to clip to the fridge 01.01.2001
12.01.2000
Calculating the odds of surviving a manned mission to Mars 10.01.2000
09.01.2000
06.01.2000
A complete guide to the exciting December 3 touchdown near the Red Planet's South Pole 09.01.1999
More evidence for fossilized bacteria in a meteorite from Mars. 06.01.1999
Who needs a telescope when the Red Planet is this close? 05.01.1999
Who needs a telescope when the Red Planet is this close? 05.01.1999
The members of the Mars Society are united in their frontier vision of the Red Planet, but fiercely at odds on the nature of the Martian society they'll construct. 02.01.1999
The members of the Mars Society are united in their frontier vision of the Red Planet, but fiercely at odds on the nature of the Martian society they'll construct. 02.01.1999
07.01.1998
Cheaper, Faster, Bouncier 01.01.1998
08.01.1997
So you don't happen to have a spare half-trillion dollars. Cheer up, there's more than one way to Mars, after all, it's only rocket science. 05.01.1997
Hints of fossilized microbes have rekindled NASA's hopes for a community on Mars. 05.01.1997
03.01.1997
03.01.1997
Finding evidence of ancient life on Mars may be even more difficult than we thought. 02.01.1997
A meteorite bearing tantalizing evidence of life on Mars makes a big splash. 01.01.1997
Sometime in the next century, he hopes to find fossil microbes on Mars. 10.01.1995
06.01.1994
11.01.1992