18 March 2014, 09:25 AM ET
The find suggests that space-time really did expand at many times the speed of light in the first few tiny fractions of a second after the Big Bang, as predicted by the theory of cosmic inflation, researchers say.
17 March 2014, 05:07 PM ET
The Nobel laureate talks about the apparent detection of gravitational wave signatures in the cosmic microwave background radiation, as well as what it was like to spot the CMB in 1964, putting the Big Bang theory on solid ground.
17 March 2014, 12:49 PM ET
The Dasht-e Lut salt desert in southeast Iran is captured in this stunning space wallpaper. The desert is often called the ‘hottest place on Earth’ as satellites measured record surface temperatures there for several years.
17 March 2014, 12:11 PM ET
Astronomers have found the first direct evidence of cosmic inflation, the theorized dramatic expansion of the universe that put the "bang" in the Big Bang 13.8 billion years ago. The find also confirms the existence of gravitational waves.
17 March 2014, 12:09 PM ET
Evidence that the universe rapidly expanded in its first few nanoseconds has been found by an instrument in Antarctica: Gravitational waves, which have long eluded astronomers, were spotted, supporting this cosmic inflation model.
14 March 2014, 10:49 AM ET
As anchor of National Geographic Channel’s two hour special on March 14th, 2014 at 8pm EST, O’Brien will turn to astronauts Mike Massimino for color commentary on the ground while talking with Rick Mastracchio and Koichi Wakata on ISS.
14 March 2014, 09:37 AM ET
This beautiful space wallpaper is a photo illustration based on a Hubble Space Telescope survey of evolving Milky Way-type galaxies. The current night sky is dominated by the white glow of myriad middle-aged stars along the lane of the Milky Way.
13 March 2014, 12:36 PM ET
Capture the sky through a telescope you make yourself.
13 March 2014, 10:10 AM ET
On Monday (March 10), NASA began examining ways it can contribute to the search for Malaysian Airlines Flight 370, which disappeared shortly after takeoff on Friday (March 7), agency officials said.
13 March 2014, 10:00 AM ET
Hundreds of “rogue” wandering black holes may dwell in the Milky Way – and now Harvard University researchers say they know how to detect them. The discovery of these strange objects could shed light on the formation of the Milky Way and other galaxies.
13 March 2014, 09:51 AM ET
This amazing space wallpaper reveals the throes of stellar birth, as never before, in the well-studied object known as HH 46/47. The image is the result of combined observations from the Spitzer Space Telescope and ALMA in Chile.
12 March 2014, 12:36 PM ET
Information gathered by planetary and deep space craft may soon be streaming back to Earth in the form of a laser rather than by radio waves.
12 March 2014, 12:09 PM ET
NASA and asteroid-mining company Planetary Resources have teamed up to launch a contest series called "Asteroid Data Hunter," which asks the public to develop algorithms that can help identify space rocks in Earth's neck of the cosmic woods.
12 March 2014, 12:05 PM ET
The IAU, the authority that assigns "official" names for all celestial bodies and surface features, will not legitimize any purchased names for cosmic objects and their features, including Martian craters, IAU officials announced today (March 11).
12 March 2014, 11:56 AM ET
A powerful telescope in Chile has imaged the largest yellow star ever discovered. The star, called HR 5171 A, shines 12,000 light-years from Earth in the center of a new image released today (March 12).
11 March 2014, 03:24 PM ET
This cool space wallpaper from the VLT Survey Telescope at ESO's Paranal Observatory shows the remarkable super star cluster Westerlund 1. This exceptionally bright cluster lies in the southern constellation of Ara (The Altar).
10 March 2014, 11:12 AM ET
Shining brightly in this space wallpaper by the Hubble Space Telescope is our closest stellar neighbor: Proxima Centauri. Proxima Centauri lies in the constellation of Centaurus (the Centaur), just over four light-years from Earth.
10 March 2014, 10:57 AM ET
Despite finding a slew of new stellar bodies outside the solar system, NASA's WISE telescope discovered no suggestion of a brown dwarf companion to the sun or a massive hidden planet.
07 March 2014, 12:37 PM ET
The European Space Agency’s ATV-4 spacecraft, an unmanned supply ship, burns up over an uninhabited stretch of the Pacific Ocean on Nov. 2, 2013 in this spectacular space wallpaper captured by an astronaut on the International Space Station.
07 March 2014, 12:20 PM ET
Astronomers have seen comets break apart as they near the sun, but they'd never witnessed anything similar in an asteroid in the main belt — until now. Hubble images show that the asteroid, known as P/2013 R3, has fragmented into 10 pieces.
07 March 2014, 11:09 AM ET
The 25-foot-wide (8 meters) asteroid 2014 EC came within 38,300 miles (61,600 kilometers) of our planet at 4:21 p.m. ET today, NASA officials said. For comparison, the moon orbits Earth at an average distance of 239,000 miles (385,000 km).
07 March 2014, 10:54 AM ET
A far-flung NASA space probe flying around Saturn zipped past the ringed planet's biggest moon for the 100th time. The Cassini spacecraft made its closest approach to the hazy moon Titan on Thursday.
06 March 2014, 10:26 AM ET
This vivid space wallpaper is a color composite image made from a ground-based eclipse image obtained by the Williams College Eclipse Expedition in Gabon and a wide-field EUV mosaic of the solar corona obtained in space by SWAP onboard PROBA2.
06 March 2014, 10:19 AM ET
Three of NASA's top meteor and fireball experts will answer questions from the public about the science behind space rocks from the sky today in a Reddit "Ask Me Anything" forum today live at 2 p.m. EST (1900 GMT).
06 March 2014, 10:01 AM ET
Astronomers have calculated how fast a distant supermassive black hole rotates, clocking it at nearly half the speed of light. A fortuitious lineup of cosmic objects allowed scientists to measure the mind-boggling spin rate.
06 March 2014, 09:40 AM ET
The space agency's Cassini probe snapped the photo in October, when it was 1.6 million miles from Saturn and 38 degrees below the ring plane. The planet's battered "Death Star" moon Mimas is visible as a pinprick of light at the bottom right.
06 March 2014, 09:34 AM ET
The 33-foot-wide (10 meters) near-Earth asteroid 2014 EC will come within 34,550 miles (55,600 kilometers) of Earth's surface this evening (March 6). You can watch the flyby here at Space.com beginning at 2:30 p.m. EST.
05 March 2014, 10:54 AM ET
A newfound asteroid will buzz close by Earth today (March 4), flying safely between our planet and the orbit of the moon, and you can follow the space rock encounter live online. The asteroid 2014 DX110 will zip by Earth at 4 p.m. EST (2100 GMT) today.
05 March 2014, 10:00 AM ET
The White House's 2015 federal budget request, which was released Tuesday, allocates $15 million to help develop a mission to Europa, which harbors a potentially life-supporting ocean of liquid water beneath its icy shell.
05 March 2014, 09:47 AM ET
The White House's 2015 federal budget request, which was released today, slashes funding for the space agency's Stratospheric Observatory for Infrared Astronomy, a modified Boeing 747 aircraft that scans the heavens using an 8.2-foot-wide telescope.
04 March 2014, 02:23 PM ET
The detection of eight new planet candidates implies that virtually all red dwarfs throughout the galaxy have planets, and at least 25 percent of these stars in the sun's own neighborhood host habitable-zone "super-Earths," researchers said.
04 March 2014, 02:11 PM ET
Inside black holes dwell quantum remains of the stars from which they were formed, say a group of scientists, who also predict that these stars can later emerge once the black hole evaporates.