27 January 2015, 04:40 PM ET
The newfound exoplanets circle a star that's 11.2 billion years old and are all Venus-size or smaller. They are, therefore, all rocky, though scientists know nothing else about their composition.
27 January 2015, 04:00 PM ET
NASA is due to launch its SMAP satellite designed to measure moisture in Earth's soils at 9:20 a.m. EST (1420 GMT) on Thursday (Jan. 29) from California. You can watch live coverage of the launch starting at 7 a.m. EST (1200 GMT).
27 January 2015, 01:36 PM ET
Tantalizing new images of the nearest dwarf planet to Earth are revealing never-before-seen surface features of the mysterious space rock.
27 January 2015, 11:00 AM ET
Vesta was once thought to be dry, but gullies on the walls of impact craters suggest that water flowed briefly on the protoplanet's surface in the relatively recent past.
27 January 2015, 07:20 AM ET
Asteroid 2004 BL86 cruised within 745,000 miles (1.2 million kilometers) of Earth Monday morning — about 3 times the distance between our planet and the moon. And the space rock wasn't alone.
27 January 2015, 02:17 AM ET
Eris, a distant world whose discovery led to Pluto's demotion to dwarf planet, was once proposed as the solar system's 10th planet.
26 January 2015, 06:35 PM ET
A monster storm's claws are definitely out in the satellite photos, which were captured from Saturday through Monday (Jan. 24 to Jan. 26) and combined into a new movie that shows the storm's development and movement.
26 January 2015, 06:35 PM ET
NASA Deep Space Network antenna at Goldstone, California obtained radar imagery of asteroid 2004 BL86, that flew by Earth at ~3.1 times the distance of the Moon on Jan. 26th, 2015.
26 January 2015, 04:06 PM ET
A mountain-size asteroid buzzed Earth Monday morning (Jan. 26) in a close encounter that's already revealing new information about the space rock, including an improved measurement of its size and confirmation of at least one moon.
26 January 2015, 03:03 PM ET
The interplanetary dust particles that fall to Earth from outer space apparently come from comets, according to the latest findings from Europe's Rosetta spacecraft. This discovery could shed light on the origins of Earth and the rest of the solar system.
26 January 2015, 01:32 PM ET
NASA's Soil Moisture Active Passive mission will measure the soil moisture on Earth.
26 January 2015, 12:16 PM ET
The NOAA GOES-13 satellite captured the massive winter storm bearing down on the east coast of the United States on Jan. 26th, 2015. GOES ‘sees’ infrared radiant energy and reflected visible light.
26 January 2015, 12:01 PM ET
Three astrophysicists who discovered the "Fermi bubbles" place the discovery in context, and share what the mysterious bubbles may reveal about the history of our Milky Way galaxy.
26 January 2015, 09:12 AM ET
A huge asteroid will become the largest space rock of its kind to pass closest to Earth until 2027 today (Jan. 26) when it zooms safely by Earth beyond the orbit of the moon. You can see the space rock's flyby live online.
26 January 2015, 07:00 AM ET
Alan Stern, principal investigator of NASA's New Horizons mission to Pluto, talks to Space.com about the probe's July 14 flyby of the dwarf planet.
25 January 2015, 07:30 AM ET
A "faster-than-light" experiment could be a real-world tool for studying the cosmos, according to research presented this month at the 225th American Astronomical Society meeting in Seattle.
24 January 2015, 10:40 AM ET
Engineers at NASA's Jet Propulsion Laboratory are developing a 2.2-lb. helicopter that would work in partnership with future Mars rovers.
23 January 2015, 07:14 PM ET
Flying across Greenland more than 100 times, NASA's Operation IceBridge’s ice penetrating radar produced a three dimensional view, peering back to an Earth as it was over 115,000 years ago.
23 January 2015, 04:30 PM ET
NASA's Opportunity rover celebrates 11 years on Mars Saturday (Jan. 24), and the robot's handlers are marking the occasion with a gorgeous panoramic photo that Opportunity took of its Red Planet environs.
23 January 2015, 03:32 PM ET
Although the flyby of asteroid 2004 BL86 — which is about 1,800 feet (550 meters) wide — poses no foreseeable threat to Earth, it does present a rare opportunity to easily see a near-Earth asteroid, NASA officials say.
23 January 2015, 10:37 AM ET
23 January 2015, 10:26 AM ET
Planet Labs has raised $95 million from investors in its latest round of financing. The company designs and builds sharp-eyed Earth-observation satellites that are just 12 inches long by 4 inches wide by 4 inches tall.
23 January 2015, 08:26 AM ET
Scientists don't yet know what to make of a white spot spotted on the dwarf planet Ceres, in the most recent batch of images from NASA's Dawn spacecraft.
22 January 2015, 02:03 PM ET
It's craggy, powdery, mysterious, and even holds the building blocks of life. Scientists are now getting an up-close-and-personal view of a comet flying through deep space, thanks to Europe's Rosetta spacecraft.
22 January 2015, 02:01 PM ET
Some of the most violent phenomena visible now appear to lie beyond the Milky Way in its largest satellite galaxy, the Large Magellanic Cloud.
22 January 2015, 02:01 PM ET
Using laser blasts, scientists have recreated the extreme temperatures and pressures found inside "super-Earth" exoplanets as well as in icy giants such as Neptune and Uranus, shedding light on what the interiors of these exotic worlds are like.
22 January 2015, 11:46 AM ET
The groundbreaking technology needed for the Space Telescope had to invent itself. Retired NASA employees describe the build out. And the push back they received from some ground-based astronomer colleagues.
22 January 2015, 10:00 AM ET
On Jan. 19, the Chinese Academy of Sciences and the European Space Agency issued a call for proposals for a robotic space mission that the two organizaitons will develop jointly, with launch expected in 2021.
22 January 2015, 09:50 AM ET
The Atmospheric Imaging Assembly (AIA), one of three instruments flying on the Solar Dynamics Observatory (SDO), reached the mind-boggling milestone Monday (Jan. 19).
22 January 2015, 09:43 AM ET
On Jan. 19, 2015, the Atmospheric Imaging Assembly on NASA's Solar Dynamics Observatory spacecraft obtained its 100 millionth image of the sun. In honor of this milestone, researchers working on the mission selected their favorite SDO images.
22 January 2015, 09:38 AM ET
22 January 2015, 07:45 AM ET
Giant bubbles of gas that erupted from the core of the Milky Way galaxy millions of years ago are expanding out into space at 2 million mph, according to Hubble Space Telescope observations, which also revealed the composition and mass of the bubbles.
22 January 2015, 07:00 AM ET
A re-analysis of data gathered by a NASA spacecraft more than 20 years ago suggests that exotic heavy-metal frost may be present in the mountains and highlands of Venus.
21 January 2015, 05:29 PM ET
Ashwin Vasavada has taken over the top science slot for the Curiosity Mars rover mission, and is ready to climb Mount Sharp.
21 January 2015, 01:01 PM ET
These rocky bodies' magnetic fields were apparently generated by the same process that drives Earth's global magnetic activity and could have persisted for hundreds of millions of years after the objects' formation, researchers said.
21 January 2015, 07:50 AM ET
New research presented at the American Astronomical Society meeting reveals the ingredients needed for Earth-like exoplanets to form.