A UFO has been caught on camera - by a robot on MARS.
NASA is inviting the public to help astronomers discover embryonic planetary systems hidden among data from the agency's Wide-field Infrared Survey Explorer (WISE) mission
In its first 25 days of operations, the newly reactivated NEOWISE mission has detected 857 minor bodies in our solar system
Scientists using the Herschel space observatory have made the first definitive detection of water vapor on the largest and roundest object in the asteroid belt, Ceres.
For the first time in more than a decade, five NASA Earth science missions will be launched into space in the same year, opening new and improved remote eyes to monitor our changing planet.
Comets are among the most beautiful and least understood nomads of the night sky.
Miami Speedway in Homestead, Fla., was the place to be late last month for an unusual two-day competition: the DARPA Robotics Challenge Trials.
Two new views from NASA's Nuclear Spectroscopic Telescope Array, or NuSTAR, showcase the telescope's talent for spying objects near and far.
Like lifting a giant veil, the near-infrared vision of NASA's Hubble Space Telescope uncovers a dazzling new view deep inside the Tarantula Nebula.
After nearly a decade of development, construction and testing, the world’s most advanced instrument for directly imaging and analyzing planets around other stars is pointing skyward
Three-dimensional printers are transforming the business, medical, and consumer landscape by creating a vast variety of objects...
The sun emitted a mid-level solar flare, peaking at 5:13 a.m. EST on Jan. 7, 2014.
More than three-quarters of the planet candidates discovered by NASA's Kepler spacecraft have sizes ranging from that of Earth to that of Neptune
This holiday season, feast your eyes on images of Saturn and two of its most fascinating moons, Titan and Enceladus
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