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18 April 2014, 12:30 PM ET
“Ice island B31” is 200 feet thick and 21mi X 12mi. It separated from the Antarctic Pine Island Glacier in Nov. 2013. NASA's Terra and Aqua satellites have been imaging its progress towards open ocean.
18 April 2014, 12:00 PM ET
The Defense Advanced Research Projects Agency (DARPA) says the telescope design — known as the Membrane Optical Imager for Real-Time Exploitation — would be of great use in geosynchronous Earth orbit.
18 April 2014, 11:00 AM ET
The next generation of satellites could hitch a ride on a fighter jet before heading into space. A new concept awarded to Boeing in late March could slice the launch costs by up to 66% if all goes well, the company said in a press release.
18 April 2014, 10:40 AM ET
The space agency's Lunar Atmosphere and Dust Environment Explorer spacecraft (LADEE) made its planned crash into the lunar surface between 12:30 a.m. EDT (0430 GMT) and 1:22 a.m. EDT (0522 GMT) on April 18 after orbiting the moon since October 2.
18 April 2014, 10:21 AM ET
Here's a list of the top 11 things that have impacted the lunar surface.
18 April 2014, 10:15 AM ET
On Thursday (April 17), NASA announced the historic discovery of Kepler-186f, an Earth-size alien planet 490 light-years from our own world that is located inside the habitable zone of its star. See Space.com's complete coverage of the Kepler-186f find.
18 April 2014, 07:20 AM ET
NASA's Mars rover Curiosity is beaming home amazing photos of the Red Planet.
18 April 2014, 06:10 AM ET
Private spaceflight company SpaceX is expected to launch its unmanned cargo-carrying Dragon capsule to the International Space Station today (April 18) after multiple delays.
18 April 2014, 06:01 AM ET
The discovery of Kepler-186f still falls short of the ultimate prize in exoplanet science: a true "alien Earth." But the first such world may lurk in the data already gathered by NASA's Kepler space telescope, just waiting to be pulled out.
18 April 2014, 06:00 AM ET
A newly discovered planet that has been called 'Earth's cousin' has just been found 490 light-years from Earth.
17 April 2014, 06:35 PM ET
NASA's LADEE will soon intentionally crash into the Moon. In March the dust-studying probe flew as low as 2 miles above the surface and faster than bullet at 3,690 miles per hour.
17 April 2014, 06:16 PM ET
The discovery of the exoplanet Kepler-186f further bolsters the emerging view that Earth is not such a unique place, and that habitable environments may be widespread throughout the galaxy, experts say.
17 April 2014, 06:10 PM ET
A spacecraft circling the Red Planet has spotted NASA's Mars rover Curiosity hard at work on the Martian surface.
17 April 2014, 05:50 PM ET
Here's how to see two of the three largest asteroids, Ceres and Vesta, in the night sky this month. Although Vesta is about half the size of Ceres, it appears brighter in our sky, because its surface is whiter than that of Ceres, reflecting a lot more of
17 April 2014, 05:22 PM ET
Data from the Kepler Mission, plus Keck and Gemini North Telescopes confirm Kepler 186f (about 1.1X Earth’s diameter) to orbit near the edge of habitability around an M-dwarf star with 4 other known planets.
17 April 2014, 02:01 PM ET
Ten of the alien worlds that represent our best hope for alien life beyond the solar system, according to the University of Puerto Rico at Arecibo.
17 April 2014, 02:01 PM ET
A rocky planet that could have liquid water at its surface orbits a star 490 light-years away.
17 April 2014, 02:01 PM ET
Scientists have discovered Kepler-186f, the first Earth-size alien planet in the habitable zone of its host star. The so-called 'Earth cousin' just might have liquid water and the right conditions to support life.
17 April 2014, 02:01 PM ET
The alien planet Kepler-186f is a planet only slightly larger than Earth orbiting inside the habitable zone of its red dwarf star. See images and photos of the Kepler-186f planet discovery in this Space.com gallery.
17 April 2014, 02:01 PM ET
It's the brass ring that teams of astronomers from hither to yon have tried to grab: Discovering a planet that sports an environment similar to our own. Finding Earth's cousin. And now, a team of researchers may have done it.
17 April 2014, 02:00 PM ET
A look at the five exoplanets most likely to host life as we know it, a list topped by the newfound Earth-size world Kepler-186f.
17 April 2014, 02:00 PM ET
Planet-hunters have new evidence of a planet, about 1.1x Earth’s size, in orbit around another star. Kepler 186f, the outermost world of a 5-planet system, revolves about 3x closer to its star than Earth does to our Sun. More--> http://goo.gl/1fUSo
17 April 2014, 01:33 PM ET
Five volcanoes on the Kamchatka Peninsula are seen erupting from space on one satellite pass by Landsat 8.
17 April 2014, 11:19 AM ET
The close-up of the right side of the control panel in the Plum Brook Facility shows the controls for the manual operation of the shim rods.
17 April 2014, 10:16 AM ET
NASA will announce a new discovery by its planet-hunting Kepler space telescope today, and you can following the unveiling live online. Space agency officials and scientists will host a live news teleconference at 2 p.m. EDT (1800 GMT).
17 April 2014, 10:00 AM ET
This 14-hour exposure surfaces a wide range of galaxy types halfway across space-time to the beginning of the universe. Some are colliding and combining. The image depicts energy at visible and infrared wavelengths.
17 April 2014, 07:00 AM ET
A NASA probe orbiting the moon will literally bite the lunar dust within the next week or so when it crashes into the moon's far side.
17 April 2014, 01:10 AM ET
The Atacama Large Millimeter/submillimeter Array (ALMA) is a telescope array that peers through stardust to see planetary systems under construction.
16 April 2014, 05:34 PM ET
Stargazers took a set of stunning images of Mars during a fortuitous alignment that occurs every two years. The bright rust coloration of Mars is known for is due to iron-rich minerals.
16 April 2014, 05:15 PM ET
When humans leave Earth to explore planets like Mars and other hostile environments in outer space, they'll need to supply their own breathable oxygen. NASA is now seeking proposals for systems to safely and efficiently regenerate air on those long trips.
16 April 2014, 05:00 PM ET
Auroras dance, the Milky Way dazzles and lightning sparks in the night sky over some of the most rugged and beautiful terrain South Dakota, Wyoming and Utah have to offer as seen in this magnificent new time-lapse film.
16 April 2014, 12:50 PM ET
Filmmaker Kai Staats joins leading researchers from the LIGO team to share the motivations behind "LIGO: A Passion for Understanding."