NASA - National Aeronautics and Space Administration

AIM: Aeronomy of Ice in the Mesosphere

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 Launches Hi-Def Solar Imagers

STEREO has successfully launched on its sun imaging mission.

Volcanic Plume on Io

NASA's New Horizons spacecraft launches on mission to visit Pluto, its moon Charon and the Kuiper Belt.

Mars Reconnaissance Orbiter

As 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.

Spacecraft Milestones, Technical Issue