29 January 2014, 06:48 AM ET
The night sky is becoming brighter and brighter, thanks to human population growth and inefficient, improperly installed lighting. But you can help stem this tide.
29 January 2014, 06:45 AM ET
The X-37B launched on Dec. 11, 2012, meaning that it has been aloft for 413 days as of Tuesday (Jan. 28) on the third mission for the program. The endurance record is 469 days, set during the second flight, which launched in 2011.
29 January 2014, 01:00 AM ET
European Southern Observatory astronomers have mapped the mood of the closest brown dwarf star to the Sun. By comparing atmospheres of stars, scientists may learn to predicting solar weather and our Sun’s long term climate variations.
28 January 2014, 10:41 PM ET
Life on other planets could draw from thousands of amino acids to build proteins, not just the limited ones used on Earth.
28 January 2014, 06:24 PM ET
Night sky photographer Chris Schur captured two rare shots of Venus and Mercury in the daytime sky from Payson, Ariz., in January 2014. See how he did it here.
28 January 2014, 06:00 PM ET
Meet 'Abigaille:' a six-legged gecko-inspired robot that might be able to climb walls in space with sticky feet, borrowed from nature. The wall-walking robot is still in its experimental phase, but its creators hope lead to spaceship hull droids.
28 January 2014, 05:05 PM ET
The Challenger shuttle disaster is the subject of the new e-book "Challenger: An American Tragedy" by veteran Hugh Harris, who served as the Voice of NASA in launch control. Get a two-chapter preview of the Harris' new book on SPACE.com.
28 January 2014, 03:12 PM ET
Famed astrophysicist Stephen Hawking has shaken up the popular science world with his newest study about the basic nature of black holes, but is his idea revolutionary? Some scientists aren't convinced.
28 January 2014, 03:09 PM ET
CJ Sturckow, who has four space shuttle missions under his belt, got behind the wheel of Virgin Galactic's private SpaceShipTwo for the first time earlier this month, guiding the vehicle through an unpowered "glide flight."
28 January 2014, 03:01 PM ET
NASA astronaut Rick Mastracchio has been living and working on the International Space Station since November. On Friday (Jan. 31), the veteran astronaut will speak with SPACE.com about his life in space.
28 January 2014, 01:57 PM ET
Amazing night sky images from U.S. Air Force personnel.
28 January 2014, 12:05 PM ET
To resolve a paradox between quantum mechanics and general relativity, Stephen Hawking has released a new paper arguing that light can, in fact, escape from black holes eventually, doing away with the notion of an event horizon.
28 January 2014, 11:37 AM ET
NASA' s Airborne Tropical Tropopause Experiment (ATTREX) will take measurements in the Pacific Ocean's tropical tropopause (layer of atmosphere, 55,000-65,000 Feet above sea level). It'll provide data on changes in moisture and chemical composition.
28 January 2014, 11:30 AM ET
SPACE.com, the premier destination for innovation, technology, entertainment, astronomy and space news, is now accepting submissions for the SPACE.com Space Age Awards at Toy Fair 2014 in February.
28 January 2014, 11:00 AM ET
For the first time, astronomers have captured an image of the diffuse "cosmic web" of gas that stretches between galaxies.
28 January 2014, 06:41 AM ET
Far from remaining steady, the North Star has grown as much as 4.6 times brighter over the last 2,000 years.
28 January 2014, 06:34 AM ET
Urthecast officials think the project could also motivate people to take better care of the planet, by giving them an astronaut's-eye view of Earth as a small and fragile outpost of life hanging alone in the blackness of space.
27 January 2014, 05:23 PM ET
When Challenger was lost, the U.S. space program chose to not falter.
27 January 2014, 05:10 PM ET
NASA is looking for good ideas about how to send a robot back to the surface of the moon. The space agency's new Lunar CATALYST is designed to give private entities a chance to develop robotic moon landers with help from NASA.
27 January 2014, 04:12 PM ET
It was 'take two' for the installation of a pair of commercial video cameras on the outside the International Space Station, as Russian cosmonauts conducted a second spacewalk to add the Earth-viewing HD cameras to the orbiting outpost's exterior.
27 January 2014, 03:40 PM ET
The space agency will launch five Earth-observation missions in 2014, starting with the Feb. 27 liftoff of the Global Precipitation Measurement (GPM) Core Observatory from Japan's Tanegashima Space Center.
27 January 2014, 03:08 PM ET
Scientists have found twenty sun-like stars moving fast enough to escape the galaxy.
27 January 2014, 02:03 PM ET
Physicist and cosmologist Stephen William Hawking's life story – as only he can tell it – premieres Jan, 29th at 10pm (EST) on PBS. Beyond the public scientist, Stephen reveals intimate glimpses into his private life.
27 January 2014, 12:43 PM ET
Photographer Justin Ng captured the glow of inner solar system dust scattering sunlight over 3 Indonesian volcanoes, the active Semeru and Bromo plus the dormant Batok. Planets Venus, Saturn and Mercury lie within this field of view.
27 January 2014, 10:15 AM ET
See photos of Russian cosmonauts Oleg Kotov and Sergey Ryazanskiy spacewalking outside the International Space Station on Jan. 27, 2014 to install UrtheCast HD cameras for Earth observation.
27 January 2014, 09:30 AM ET
MarsCrew134 is simulating the exploration of Mars in high altitude Utah. Crew scientist Michaela Musilova is adding organisms from Earth's extreme environments to the Utah soil samples to create organics, and important step in terraforming Mars.
27 January 2014, 07:01 AM ET
China's Jade Rabbit moon rover may have stubbed its lucky foot. The Yutu moon rover has suffered a malfunction on the moon during its landmark Chang'e 3 lunar landing mission.
27 January 2014, 06:08 AM ET
Solar wind can form water on interplanetary dust, potentially adding to the primordial soup that gave rise to life on Earth, scientists say. The creation of water via the solar wind could help explain the presence of water on the moon and on asteroids.
26 January 2014, 12:40 PM ET
What was your favorite space news story of the last week?
26 January 2014, 11:15 AM ET
What started out as a 10-minute telescope lesson turned into something much more exciting, as a group of astronomy students raced against encroaching clouds to document an amazing scientific discovery: a new supernova in the galaxy M82.
26 January 2014, 10:45 AM ET
NASA's robot butler for astronauts, Robonaut 2, is still waiting for its legs to be delivered to the space station. In the meantime, video of the robot's twin on Earth shows how its climbing legs will allow the droid to move with eerie elegance.
25 January 2014, 09:15 AM ET
Black holes are mysterious objects in space where not even light can escape. But what are they really? Can we even ever truly know?