Moon's Big Bulls-Eye StudiedNew techniques allowed radar observations of the moon's Orientale basin.
Hydrothermal Vents on Mars Could Have Supported Life
NASA's Spirit Rover finds silica deposits that indicate ancient hydrothermal vents.
Investigating the Mysteries of Mars
NASA's newest lander to address questions of water and life on Mars.
Japanese Astronaut to Bring Country's Hope to Station
Orbiter Catches Sounds from Phoenix Mars Descent
Phoenix Mars Lander: Step-by-Step Martian Landing Guide
Four New Teams Join Moon Rover Race
NASA Discusses Launch Plan for Space Shuttle Discovery
Space Station Crew Welcomes New Cargo Ship
Mars Perhaps Too Salty for Life
Summertime Balls of Fire
Ancient Flash Floods Sculpted Earth, Mars
Bumpy Road to Mars, Part 2
Tiny Star Unleashes Huge Explosion
Jupiter's Moon Scarred by Wandering Poles
Phoenix Mars Lander to Flex Robotic Arm
Space Station Crew Awaits Orbital Plumbers
Shuttle Discovery on Track for Saturday Launch
Tackling Moondust for Future Lunar Living
Life Found Where You Least Expect It
Phoenix Mars Lander: How to Hunt for Martian Ice
Supernova Birth Observed for First Time
Robot to Dig Martian Arctic
NASA Team Studies Pollutants' Effect on Arctic Climate Change
Jupiter's Moons to 'Disappear'
Bizarre Star Gets Stranger
Brrr! Mars Colder Than Expected
VIDEO: Life on Mars - The Search Continues
A deeper look at Phoenix, Mars Express and the search for life on Mars. Credit: ESA/NASA/JPL
NEW VIDEO: Phoenix Speaks!
A European orbiter recorded this audio signal from the Phoenix Mars Lander during its May 25, 2008 descent. Credit: ESA/NASA/JPL/UA/T,A&M.
VIDEO: The Hard Road to Mars
NASA's Phoenix team discusses the challenge of simply reaching Mars, let alone landing. Credit: NASA/JPL
Vote! Where Would You Land on Mars?
Choose your favorite Martian landing spot from 10 attractive locales!
NEW VIDEO: The Nail-Biting Landing of Phoenix on Mars
A blow-by-blow look at the Phoenix lander's planned May 25, 2008 arrival on Mars. Credit: NASA/JPL
The Best (And Worst) Mars Landings
Reaching Mars is an unforgiving endeavor, with little room for error.