21 February 2014, 07:20 AM ET
In our current late evening sky, we have three constellations that represent no fewer than four dogs. They're sharing space with three big cats, Leo, Leo Minor, and Lynx, which are all found relatively close together.
21 February 2014, 07:00 AM ET
The maneuver was designed to test out a strategy for reducing wear on the robot's six metal wheels, which have accumulated dings and holes at an increasing rate over the last few months, NASA officials said.
20 February 2014, 04:45 PM ET
A rare black widow binary star system consists of one of heaviest neutrons stars (~2X Sun Mass) known and a small companion star (12X Jupiter Mass) in the tightest orbit ever seen. High-energy particles from the former are obliterating its companion.
20 February 2014, 03:36 PM ET
Although asteroids figure large in doomsday predictions, science fiction stories and video games, most stargazers have never actually seen one with their own eyes. This week you will get an opportunity to observe one of the largest asteroids.
20 February 2014, 03:32 PM ET
From a build-it-yourself UFO to a robot that can balance a can of soda, 2014's Toy Fair showcased a diverse range of playthings and gadgets for kids of all ages. Here are the winners of Space.com's space-age toy awards.
20 February 2014, 02:03 PM ET
A maneuver undertaken by NASA's Odyssey orbiter will allow the craft to begin a systematic study of temperature and atmospheric changes that occur around sunrise and sunset each day.
20 February 2014, 02:02 PM ET
Going for its 25th flight, the United Launch Alliance Delta 4 rocket family will launch a new Global Positioning System navigation satellite from Cape Canaveral Thursday night (Feb. 20).
20 February 2014, 01:48 PM ET
Mars' upper atmosphere is swarming with atoms, ions and molecules actively exiting the planet's sphere of influence. That's why NASA's Mars Atmosphere and Volatile EvolutioN (MAVEN) spacecraft is headed there: to discover why.
20 February 2014, 07:00 AM ET
The European Space Agency has selected a space telescope called PLATO — short for Planetary Transits and Oscillations of stars — as its third medium-class science mission. The observatory is slated to blast off in 2024.
20 February 2014, 07:00 AM ET
Officials with the Slooh Space Camera are urging the public to help find the asteroid 2000 EM26, which hasn't been seen since March 14, 2000, just nine days after its discovery.
20 February 2014, 01:03 AM ET
Valery Kubasov, a Soviet cosmonaut whose three space missions included the first joint flight between the U.S. and Russia, died on Feb. 19, 2014. He was described as a "true pioneer of spaceflight and international cooperation in space."
19 February 2014, 03:45 PM ET
NASA's Mars rover Curiosity rolled past 5 kilometers on the Red Planet last week, and many people who work at the space agency's Jet Propulsion Laboratory went on a 5K run to celebrate.
19 February 2014, 03:10 PM ET
NASA has set up a "rapid response system" to pick the best candidates for its ambitious asteroid-capture mission, which aims to haul a near-Earth object into a stable orbit around the moon.
19 February 2014, 02:28 PM ET
The retired Earth-watching satellite Landsat 5 may have quit taking pictures of planet, but it’s apparently not finished posing in them.
19 February 2014, 01:52 PM ET
Astronomers using data from NASA's Rossi X-ray Timing Explorer (RXTE) have accounted for a dozen instances of X-ray signals diminished by gas clouds. Scientists have surmised that the clouds can average 4 billion miles across and 2X Earth's mass.
19 February 2014, 01:01 PM ET
The devastating, explosive deaths of stars appear to be lopsided cosmic conflagrations, scientists say. The new findingsmay be a clue into what exactly happens in the hearts of stars as they explode as supernovas.
19 February 2014, 10:24 AM ET
NASA astronaut Mike Massimino is back on 'The Big Bang Theory' in a new episode of the hit CBS comedy, but he soon will not be the only spaceman on network TV. All four of the major U.S. networks now have space-themed shows ready to air or in development.
19 February 2014, 09:15 AM ET
Landing on the moon is no easy feat, and five teams competing for the $30 million Google Lunar XPRIZE might just get a little more money to help them send their probes to the lunar surface.
19 February 2014, 06:38 AM ET
A space elevator consisting of an Earth-anchored tether that extends 62,000 miles (100,000 kilometers) into space could eventually provide routine, safe, inexpensive and quiet access to orbit, some researchers say.
19 February 2014, 06:00 AM ET
Bright star cluster M7 (NGC 6475, the ‘Ptolemy Cluster') appears near the tail of the Constellation Scorpius. This new image from the ESO's La Silla Observatory features these stars, chemically similar to our Sun. Celestial soundtrack by 'Super 400'.
19 February 2014, 06:00 AM ET
A new image of M7 shows stars shining like diamonds in the tail of Scorpius. The star cluster is about 200 million years old and a part of its population are expected to explode as supernovas.
18 February 2014, 05:50 PM ET
If your weather is clear Wednesday night (Feb. 19), take a look at the sky toward the east-southeast horizon to spot a 'celestrial triangle' formed by the moon, a bright star and an even brighter planet: Mars.
18 February 2014, 04:17 PM ET
The Mars Science Laboratory recently crossed a sand dune called Dingo Gap, leaving behind a terrain full of sharp, well cemented rocks on its way past 5,000 meters traveled on the martian surface.
18 February 2014, 04:02 PM ET
NASA's Mars rover Curiosity has given scientists their best-ever look at the radiation environment astronauts would experience during a Red Planet mission.
18 February 2014, 03:37 PM ET
Observations by NASA's Hubble Space Telescope reveal that the central part of the Large Magellanic Cloud galaxy completes one rotation every 250 million years — the same time it takes the sun finish a lap around the core of our own Milky Way.
18 February 2014, 01:23 PM ET
See amazing, and sometimes hilarious, photos of fun in weightlessness in these zero gravity photos on airplanes and spacecraft.
18 February 2014, 01:01 PM ET
A commercial Cygnus spacecraft departed the International Space Station on Tuesday, heading for a fiery finale over the Pacific Ocean to help clear the outpost of trash at the conclusion of the first operational resupply run by Orbital Sciences Corp.
18 February 2014, 01:00 PM ET
Swimsuit-clad model Kate Upton dives and floats, not in water, but through the air for a new spread in Sports Illustrated. Upton flew on a Zero Gravity Corporation flight to model new bikini and one-piece fashions in weightlessness for Sports Illustrated'
18 February 2014, 07:01 AM ET
Astronomers studying the remnants of a well-known stellar explosion discovered a blisteringly fast shock wave that is rushing inward at 1,000 times the speed of sound, lighting up what remains of the powerful cosmic explosion.
18 February 2014, 07:00 AM ET
NASA is training one of its humanoid robots to perform telemedicine, envisioning a future where the bot could act like a surrogate doctor, guided by experts on the ground to provide care for astronauts in space.
17 February 2014, 06:41 AM ET
Night sky photographer Miguel Clara snapped this stunning image of the Big Dipper over Spain's Canary Islands off the west coast of Africa. See how he did it.
17 February 2014, 06:40 AM ET
A study of teeny-tiny meteorite fragments revealed that two essential components of life on Earth as we know it, could have migrated to our planet on space dust.