Cape Verde in approximate true color
Mars

Latest from NASA's spacecraft exploring the red planet.

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On the Final Frontier
Cassini at Saturn

Unlocking the secrets of the ringed giant and its moons

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Comet Tempel 1 Nucleus Shape Model
Science Mission Directorate

NASA uses orbiting observers and robotic landers to investigate the planets, moons, comets, and asteroids of our Solar System.

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Latest Features

NASA Phoenix Mission Ready for Mars Landing

map showing landing site for Phoenix and other rovers and landers
05.13.08

NASA's Phoenix Mars Lander is preparing to end its long journey and begin a three-month mission to taste and sniff fistfuls of Martian soil and buried ice.

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Phoenix Flying True Enough to Skip One Scheduled Adjust...

artist concept of Phoenix spacecraft in space
05.09.08

NASA's Phoenix Mars Lander continues on course for its May 25 arrival at Mars.

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Intense Testing Paved Phoenix Road to Mars

engineer checks robotic arm of Phoenix
05.09.08

When NASA's Phoenix Mars Lander descends to the surface of the Red Planet on May 25, few will be watching as closely as those who have spent years planning, analyzing and conducting tests to prepare f...

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  • Report to Congress on Near Earth Objects

    03.09.07 - A report on surveying potentially hazardous objects and developing alternatives for diverting them.

    › View Report (771Kb PDF)