10 September 2014, 03:25 PM ET
Sunspot AR2158 produced a X1.6-class flare on September 10th, 2014. The site of the blast faced where Earth would be if a coronal mass ejection (CME) was emitted. Imagery not yet fully returned from orbiting observatories will be checked for this.
10 September 2014, 03:23 PM ET
The moon will wow stargazers with a total lunar eclipse on Oct. 7 and 8, but you don't have to wait to start preparing for the event. The pre-dawn moon on Thursday, Sept. 11, will be in the same position as on Oct. 8, offering a dress rehearsal for the lu
10 September 2014, 02:29 PM ET
As the moon moves in its orbit around the Earth, it inevitably passes in front of many stars and planet and Uranus will find itself in the moon's crosshairs tonight (Sept. 10).
10 September 2014, 01:45 PM ET
Quasars are the brightest objects in the universe, and display a mysterious diversity in their appearance that have puzzled astronomers for more than two decades. Now, scientists think they have a method for solving that mystery.
10 September 2014, 01:20 PM ET
Having traveled 25 miles since landing in 2004, the long-lived NASA rover snapped an image that included several hundred yards of its tracks as it rolled along the rim of Along the rim of Mars Endeavour Crater on Mars.
10 September 2014, 12:53 PM ET
A tour of nearby cool objects takes us to W0855 which, researchers believe, has water and sulfides in its atmosphere. The icy body is as cold as the North Pole and 3 to 10 times larger than Jupiter.
10 September 2014, 10:53 AM ET
A trio of space travelers will return to Earth tonight (Sept. 10) to end a months-long expedition to the International Space Station, and you can watch the landing live online. The crew is due to land at 10:23 p.m. EDT (0223 GMT).
10 September 2014, 10:34 AM ET
A prototype was created by researchers at NASA's Jet Propulsion Laboratory and Brigham Young University. They could be "useful one day in utilizing space solar power for Earth-based purposes" according to NASA.
10 September 2014, 07:25 AM ET
NASA has chosen four private companies to fly experiments high into Earth's atmosphere.
10 September 2014, 07:02 AM ET
Stunning new photos taken by a telescope in Chile show an incredible grouping of stars that may help scientists solve a stellar conundrum.
10 September 2014, 07:00 AM ET
A New York Fashion Week event will showcase a line of silk scarves artfully printed with free-to-use images taken by NASA spacecraft like the Hubble Space Telescope and Mars Reconnaissance Orbiter.
10 September 2014, 06:45 AM ET
An excerpt from "Curiosity," Rod Pyle's new book about NASA's $2.5 billion Mars Science Laboratory mission.
10 September 2014, 06:45 AM ET
The European Space Agency's Cooperative Adventure for Valuing and Exercising human behaviour and performance Skills (CAVES) course, which helps astronauts and support staff prepare for the rigors of a space mission, kicked off this week in Italy.
10 September 2014, 06:00 AM ET
The cluster is located about 90,000 light years away in the Sagittarius Dwarf Galaxy. Astronomers using Europe's Very Large Telescope (VLT) in Chile have been observing the cluster to measure levels of the element lithium in its stars.
09 September 2014, 04:00 PM ET
The Giant Magellan Telescope (GMT) completed several major external reviews earlier this year and is on target to break ground in the Chilean Andes before the end of 2014. The huge scope should begin observing the heavens early in the next decade.
09 September 2014, 02:49 PM ET
When a private spaceship was cremated over Earth earlier this summer, the astronauts living and working on board the International Space Station had a stunning view of the vehicle's fiery demise.
09 September 2014, 01:41 PM ET
Sunspot AR2158 unleashed an M4.6-class flare on September 9, 2014. NASA estimates that the coronal mass ejection (CME) was moving pretty fast. According to Spaceweather.com, "it will deliver a glancing blow to Earth's magnetic field."
09 September 2014, 01:17 PM ET
ESA astronaut Alexander Gerst has been snapping imagery of Earth throughout his stay on the ISS. The space agency's production team created the movie with artistic effects such as light trails, created when superimposing imaging and fading slowly.
09 September 2014, 12:52 PM ET
The mission that will study the Red Planet's atmosphere will reach its target on September 21, 2014 at 10pm EST. Its transfer orbit and orbital insertion are explained.
09 September 2014, 10:43 AM ET
NASA astronaut Barry E. "Butch" Wilmore talks to Space.com's @MiriKramer about the differences between the missions. Wilmore was the pilot of the Space Shuttle Atlantis STS-129 mission in 2009 and will assume command of the Space Station in 2014.
09 September 2014, 10:32 AM ET
A new wristwatch designed to be worn by the future crewmembers of a commercial space station has received the signature of approval of a former NASA astronaut.
09 September 2014, 07:01 AM ET
Two spacecraft on their way to Mars are performing well as they close in on the Red Planet this month.
09 September 2014, 06:44 AM ET
New research shows that an object, known as WISE J0304-2705 and classified as a Y dwarf, may have begun its evolution with a temperature as hot as a red dwarf star before settling on its present temperature, which is similar to Venus.
09 September 2014, 06:30 AM ET
The private spaceflight company Boeing has been hard at work designing a capsule that could deliver NASA astronauts to the International Space Station sometime in the next three years.
08 September 2014, 08:08 PM ET
When Elena Serova arrives at the International Space Station to become its first female cosmonaut crewmember on Sept. 25, she plans to treat the mission as routine — at least, as routine as a spaceflight can be.
08 September 2014, 05:12 PM ET
The space rock flew within 21,000 miles of the surface of Earth on September 7th, 2014. A. Thirouin, B. Skiff, and N. Moskovitz analyzed the brightness variations using the Lowell Observatory's 1.1m Hall telescope in Arizona.
08 September 2014, 04:57 PM ET
A committee formed by the Nicaraguan government determined that a new, 39-foot-wide (12 meters) crater found near capital city Managua's international airport was blasted out by a space rock strike Saturday night. But experts aren't convinced.
08 September 2014, 04:40 PM ET
Last night, two more of Planet Lab’s shoebox-sized Earth imaging satellites launched themselves from aboard the International Space Station, the latest in a series of technical mysteries.
08 September 2014, 04:23 PM ET
A new NASA instrument expected to launch to space later this month will help scientists study the Earth in a new way from the International Space Station.
08 September 2014, 04:03 PM ET
British soprano Sarah Brightman will begin training in January for a 2015 visit to the International Space Station.
08 September 2014, 04:01 PM ET
The stars of the Milky Way shimmer in this amazing night sky view from New York's scenic Adirondack Park captured by a photographer after a long hike out to a secluded lake. Astrophotographer Corey Rondeau took this image on Aug. 20, 2014.
08 September 2014, 04:00 PM ET
A series of breathtaking planet views will appear in the September sky for stargazers interested in spotting them.