Latest articles by Space.com Staff
Mars Rover Curiosity Flexes Robotic Arm for 1st Time
Curiosity's 7-foot arm holds a suite of tools to explore Mars.
Spot Mars in the Night Sky Before It Disappears
Mars will be visible low in the western sky shortly after sunset.
Leaky Valve on Space Station Delays Spacewalk
The suspect valve stalled two cosmonauts from starting a 6.5-hour maintenance spacewalk.
Pew! Pew! Pew! NASA's Curiosity Rover Zaps Mars Rock with Laser
The Curiosity rover fired 30 laser shots in 10 seconds to zap a rock on Mars.
Stunning Photo Reveals Colliding Star Clusters Seen by Hubble Telescope
The clusters are located about 170,000 light-years away.
Helium Spotted in Moon's Wispy Atmosphere
The results confirm observations made 40 years ago on the lunar surface.
Cosmic Photo Smokes Out Stars Inside Pipe Nebula
The Pipe nebula is a dark patch of space with some new stars forming.
Skydiver's Record-Breaking 'Space Jump' Delayed by Damaged Capsule
The "Space Jump" attempt is now aimed for some time in early October.
Super-Fast Sun Eruption Spotted by NASA Spacecraft
The coronal mass ejection traveled between 1,800 and 2,200 miles per second.
Giant Plasma Loop on Sun is Half a Million Miles Long
A NASA spacecraft spotted the huge solar filament on the sun.
Mars Rover Curiosity Snaps Hi-Res Color Views of Red Planet
Scientists pieced the 79 pictures into a mosaic.
Mars Surface Made of Shifting Plates Like Earth, Study Suggests
Plate tectonics could make Mars a better candidate to host life than researchers had thought.
Largest Map of Universe Yet Captures 1 Million Galaxies
The map could help crack the mystery of dark energy and dark matter.
Amazing Video Captures Magical-Looking Sun Storm
A pinkish-purple filament snakes between two massive sunspots.
Wow! Mars Rover Landing Spotted by Orbiting Spacecraft
The spectacular photo shows the Mars rover Curiosity landing under its parachute.
NASA Awards $1.1 Billion in Support for 3 Private Space Taxis
The selected companies are Sierra Nevada, Boeing and SpaceX.
New NASA Mars Rover is a Red Planet Mini-Truck, Ford Says
A side-by-side comparison reveals some similarities between NASA's new Mars rover and Ford's truck.
NASA to Broadcast Mars Rover Landing From NYC's Times Square Sunday Night
The live NASA broadcast of the Curiosity rover's arrival at Mars will be screened on a giant TV in Manhattan.
Cosmic Rays Still Mysterious 100 Years After Discovery
A high-altitude balloon flight revealed the existence of cosmic rays on Aug. 7, 1912.
Unmanned Russian Cargo Ship Departs Space Station
A robotic Russian cargo ship big farewell to the International Space Station.
China Tests Powerful Rocket Engine for New Booster
The new engine will be integrated into China's planned Long March 5 rocket.
Less Than a Week Remains Before NASA's Biggest Rover Yet Lands on Mars
NASA's Curiosity rover will touch down on the Red Planet on the night of Aug. 5.
Spiral Galaxy Photo Sheds New Light on Recent Star Explosion
The supernova remnant may host a spinning pulsar, the photo suggests.
