A mission to achieve the first global observations of the region beyond the termination shock at the very edge of our solar system.
The lander scoops up soil to search for possible conditions for life in the Martian arctic.
› Phoenix SectionThe joint NASA-French satellite will help scientists better monitor and understand rises in global sea level, study the world's ocean circulation and its links to Earth's climate.
Later this summer NASA will attempt to deploy and operate the first spacecraft in low Earth orbit propelled only by the power of sunlight.
Commander Sergei Volkov leads the crew on the International Space Station.
› Complete Station CoverageThe Gamma-ray Large Area Space Telescope will answer questions about supermassive black hole systems, pulsars and the origin of cosmic rays.
Shuttle astronauts will make one final house call to NASA's Hubble Space Telescope as part of a mission to extend and improve the observatory's capabilities through 2013.
› Hubble Servicing MissionNASA's MErcury Surface, Space ENvironment, GEochemistry, and Ranging (MESSENGER) is the first mission sent to orbit the planet closest to the sun.
A new generation of spacecraft will carry humans to the moon, Mars and beyond.
Dawn launched in September, becoming the first spacecraft ever planned to orbit two different bodies after leaving Earth. The spacecraft will orbit Vesta and Ceres, two of the largest asteroids in the solar system.
AIM's two-year mission is to study Polar Mesospheric Clouds, the Earth’s highest clouds, which form an icy membrane 50 miles above the surface at the edge of space.
STEREO has successfully launched on its sun imaging mission.
› STEREO SiteNASA's New Horizons spacecraft launches on mission to visit Pluto, its moon Charon and the Kuiper Belt.
› New Horizons SectionAs the long-lived robotic rover Opportunity begins to explore the area ringing the massive Victoria crater on Mars, the Mars Reconnaissance Orbiter will help guide the rover's exploration of Victoria.