Little Pluto is a little bigger than anyone imagined.
Scientists are receiving data that will offer the closest look ever of Pluto later Wednesday, after the unmanned NASA spacecraft whizzed by the distant dwarf planet.
Colorful new maps of Ceres, based on data from NASA's Dawn spacecraft, showcase a diverse topography, with height differences between crater bottoms and mountain peaks as great as 9 miles (15 kilometers).
When destined to stay close to Earth, spacecraft often must withstand the hazards of our space environment. They can be exposed to regular radiation showers from the sun and - if the space weather is particularly intense, ...
Enceladus looks as though it is half lit by sunlight in this view from NASA's Cassini spacecraft, but looks can be deceiving. The area on the right, where surface features can be made out, are actually illuminated by light ...
Space scientists on Wednesday unveiled their plan to put the revived robot lab Philae back to work with experiments to monitor, sniff and prod a comet hurtling toward the Sun.
Like graffiti sprayed by an unknown artist, unexplained arc-shaped, reddish streaks are visible on the surface of Saturn's icy moon Tethys in new, enhanced-color images from NASA's Cassini spacecraft.
NASA's Cassini spacecraft will zip past Saturn's moon Dione on Monday, Aug. 17—the final close flyby of this icy satellite during the spacecraft's long mission.
NASA's New Horizons spacecraft is getting a final "all clear" as it speeds closer to its historic July 14 flyby of Pluto and the dwarf planet's five moons.
What a difference 20 million miles makes! Images of Pluto from NASA's New Horizons spacecraft are growing in scale as the spacecraft approaches its mysterious target. The new images, taken May 8-12 using a powerful telescopic ...