12 September 2014, 05:06 PM ET
Scientists drew borders around the distinct landscapes of a comet where the Rosetta spacecraft will land this fall.
12 September 2014, 05:00 PM ET
For the first time, astronomers have detected water ice clouds, like the ones that shroud Earth, around a dim celestial body outside of our solar system.
12 September 2014, 01:03 PM ET
Skywatchers on the ground are already catching sight of some amazing looking auroras produced by solar material blown out from the sun during two major eruptions this week.
12 September 2014, 11:48 AM ET
The United States military's high-technology branch is hoping to test out on-orbit satellite servicing in orbit in the next five years.
12 September 2014, 09:41 AM ET
ESA’s Rosetta mission will attempt to to land its Philae lander on comet 67P/Churyumov-Gerasimenko in November 2014. ESA recently released their 5 top choices and on September 15th, 2014 they will announce the landing site (and its backup).
12 September 2014, 08:33 AM ET
The Mars Science Laboratory has driven nearly 5 miles on the surface of the Red Planet and is ready to start the next phase of its mission. Curiosity mission scientist Katie Stack reports.
12 September 2014, 07:00 AM ET
Talk about "off-Earth roading." The car company Land Rover is partnering with the private spaceflight company Virgin Galactic to send the most adventurous people it can find into space.
12 September 2014, 06:32 AM ET
Two waves of solar material blown out by powerful sun eruptions n this week are hitting the Earth now, and could amplify the aurora displays for observers in northern regions.
12 September 2014, 12:32 AM ET
ALMA and many other telescopes on the ground and in space have been used to obtain the best view yet of a collision that took place between two galaxies when the Universe was only half its current age, as seen in this spectacular space wallpaper.
11 September 2014, 06:52 PM ET
NASA's Solar Dynamics Observatory (SDO) and Solar and Heliospheric Observatory (SOHO) captured September 10th, 2014's X1.6-class flare and ensuing coronal mass ejection (CME).
11 September 2014, 04:36 PM ET
Powerful solar flares from the sun this week may amplify the northern lights displays over parts of the northern United States through the weekend, space weather scientists say.
11 September 2014, 04:17 PM ET
On Sept. 10, 2014, the sun unleashed a massive X1.6-class solar flare aimed directly at Earth. Take a look at amazing photos of the solar storm and its effects on Earth in this Space.com gallery.
11 September 2014, 03:57 PM ET
After two years of driving and drilling on Mars, NASA's Curiosity rover has reached its 'far frontier': the base of a giant Martian mountain.
11 September 2014, 02:01 PM ET
Scientists may have solved the mystery behind why giant hot Jupiter planets have such weird orbits. As these giant worlds drew close to their stars, they may force the stars into a chaotic wobble.
11 September 2014, 01:10 PM ET
The hot, wrinkled lava from Iceland's Bardarbunga volcano shines bright in two new satellite images of the blazing eruption.
11 September 2014, 01:09 PM ET
The Mars Science Laboratory Curiosity is heading to the "Pahrump Hills" outcrop (seen above the scale bar). The rover's Mast Camera (Mastcam) imaged the 'Amargosa Valley' as it would appear to humans if placed on Earth.
11 September 2014, 12:54 PM ET
Two communications satellites for operators in Malaysia and Australia are awaiting liftoff Thursday (Sept. 11) aboard an Ariane 5 rocket.
11 September 2014, 12:31 PM ET
Venus does not have a magnetic field and is pounded by solar wind. NASA researchers have found clues that the Sun's magnetic field lines are behind the hole formations.
11 September 2014, 12:12 PM ET
Selfies can even be taken in deep space. The European Space Agency's comet-chasing Rosetta probe's Philae lander snapped a stunning photo of the spacecraft and its target comet, 67P/Churyumov–Gerasimenko.
11 September 2014, 12:00 PM ET
Former NASA astronaut Frank Culbertson, who was in space on Sept. 11, 2001, reflects on witnessing the attacks from orbit 13 years later.
11 September 2014, 09:55 AM ET
NASA's Interface Region Imaging Spectrograph (IRIS) mission can only study small areas of the Sun's surface at a time. This week’s mission planner pointed the probe at promising sunspot AR2158 just in time for an X1.6-class flare.
11 September 2014, 07:12 AM ET
A team of researchers has delineated the "Venus Zone," the range of distances from a host star where planets are likely to resemble Earth's similarly sized sister planet, which has been rendered unlivably hot due to a runaway greenhouse effect.
11 September 2014, 07:00 AM ET
Call him the Instagram astronaut. NASA astronaut Steve Swanson has been beaming back incredible views from the International Space Station via Instagram since he flew up to the orbiting outpost about six months ago.
11 September 2014, 07:00 AM ET
The sun fired off strong flares Tuesday and Wednesday from a sunspot known as Active Region 2158, which will be the focus of a free webcast hosted today at 1 p.m. EDT by the online Slooh Community Observatory. Watch it here on Space.com.
11 September 2014, 07:00 AM ET
The U.S. Air Force is using a new tool in its effort to preserve space history: lasers. The 45th Space Wing is using a laser scanner to create virtual models of the Cape Canaveral space launch complexes in partnership with the University of South Florida.
11 September 2014, 12:00 AM ET
See amazing images of the night sky and cosmos in Space.com's gallery of cosmic images posted in August 2014.
10 September 2014, 10:30 PM ET
A Russian Soyuz capsule carrying American Steve Swanson, commander of the orbiting lab's Expedition 40, and cosmonauts Alexander Skvortsov and Oleg Artemyev touched down safely on the steppes of Kazakhstan at 10:23 p.m. EDT Wednesday.
10 September 2014, 10:21 PM ET
This space wallpaper from the NASA/ESA Hubble Space Telescope shows the galaxy cluster MCS J0416.1–2403.
10 September 2014, 09:59 PM ET
Buzz Aldrin, whose accolades include being the second out of only 12 astronauts to walk on the moon, can now add being one of the 25 greatest guest stars on 'The Simpsons,' at least as immortalized in a new line of toy action figures.
10 September 2014, 05:24 PM ET
The sun unleashed an X-class solar flare — the most powerful type — at 1:45 p.m. EDT today from an Earth-facing sunspot known as Active Region 2158. The flare poses no danger to anyone here on Earth, and orbiting astronauts are safe as well.
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