Valles Marineris in imagery captured the Mars Reconnaissance Orbiter. Global topography: NASA/GSFC CTX global mosaic: ...

This week sees a special stargazing event, as as up to six planets will be visible in a line in the night sky.

Witness a rare celestial event as the moon aligns with Uranus and other planets throughout February, visible even in ...

Reporters can now access and download satellite images good enough to see individual buildings at almost every location on ...