10 September 2013, 03:29 PM ET
A new model could indicate whether an exoplanet has a light but extended atmosphere, or a relatively thin and heavy atmosphere. This knowledge could help refine the targets in the search for planets like Earth capable of sustaining life.
10 September 2013, 02:04 PM ET
Using a powerful X-ray telescope, astronomers won a round of hide-and-seek with 10 supermassive black holes.
10 September 2013, 02:01 PM ET
The fiery surface of the sun is seen in brilliant detail in images recently sent to SPACE.com by astrophotographer Paolo Porcellana. See how Porcellana safely captured the amazing solar photos here.
10 September 2013, 01:53 PM ET
NASA’s Evolutionary Xenon Thruster (NEXT) project has completed the longest duration test for a Space propulsion system (48,000 hours/5 1/2 years). This look inside the thrusters discharge chamber shows how it works.
10 September 2013, 01:27 PM ET
The storm system sprang back to life and is now traveling toward Bermuda. The time-lapse of the storm (far lower right of the video), captured by NOAA's GOES-East satellite, runs from September 8-10, 2013. (looped 3X)
10 September 2013, 01:24 PM ET
At the Explorers Club, two of the world's first space tourists traded stories about their astronaut toilet training with the Russians, or lack of it. See how private space travelers Richard Garriott and Dennis Tito compared notes.
10 September 2013, 01:00 PM ET
The dazzling pink spiral of the Pinwheel Galaxy shines in this stunning new image by space photographer John Chumack. See how Chumack observed the Pinwheel Galaxy, also known as M33 or the Triangulum Galaxy.
10 September 2013, 11:50 AM ET
After living in space aboard the International Space Station for months, two cosmonauts and an astronaut will land back on Earth today (Sept. 10) and you can watch their return live online.
10 September 2013, 11:21 AM ET
Prominent patches of wind-blown dust, possibly mixed with volcanic ash, radiate from Becquerel crater and into a neighboring crater, as seen in this spectacular space wallpaper.
10 September 2013, 10:50 AM ET
An early lunar probe's first glimpse of Earth and Soviet snapshots of the surface of Venus are among a treasure trove of historic Space Age images newly brought to life online.
10 September 2013, 10:40 AM ET
The University College of London, the only UK host of a NASA Regional Planetary Image Facility, has recently released a stunning selection of the historic space pictures—many of them never published online before, others only ever in low resolution.
10 September 2013, 10:36 AM ET
In a new, video released Sunday (Sept. 8) by the private spaceflight company SpaceX, a herd of cows can be seen running for the hills, seemingly in fear of the firm's Grasshopper rocket taking off and landing in the background.
10 September 2013, 10:18 AM ET
An F-86 aircraft is lowered into a wind tunnel at the NACA Ames Aeronautical Laboratory.
10 September 2013, 09:54 AM ET
Red Sprites, Blue Elves and Blue Jets are energetic bursts that spring from the tops of thunderstorms. Researchers believe they are Terrestrial Gamma-Ray flashes similar to those seen in supernovas. The ISS experiment 'Firestation' will study.
10 September 2013, 07:00 AM ET
SpaceX aims to launch an upgraded version of its Falcon 9 rocket from a newly refurbished pad at California's Vandenberg Air Force Base on Saturday (Sept. 14) in a mission that will also attempt to recover the rocket's first stage.
09 September 2013, 08:10 PM ET
Roscosmos, formed in 1992, came after decades of Soviet experience in space. Roscosmos is a large contributor to the International Space Station.
09 September 2013, 06:49 PM ET
Set your TV remotes to stun, the "Star Trek Into Darkness" Blu-ray will hit store shelves at warp speed on Tuesday (Sept. 10) and includes some fun glimpses into exactly how J.J. Abrams is reinventing a decades-old science fiction franchise.
09 September 2013, 05:23 PM ET
Two scientists speak of the dwarf planet Ceres, which will be visited by NASA's Dawn mission in early 2015.
09 September 2013, 03:01 PM ET
Scientists have discovered unexpected ingredients for life — organic molecules never seen before in meteorites — inside a chunk of space rock that fell to Earth over California last year, scientists say. See what they found inside the Sutter's Mill meteor
09 September 2013, 02:52 PM ET
Deep Impact's handlers lost contact with the probe — which has studied multiple comets over the years, including ISON, a "comet of the century" candidate — sometime between Aug. 11 and Aug. 14, mission team members announced last week.
09 September 2013, 02:35 PM ET
A spectacular conjunction of the moon and Venus wowed skywatchers around the world on Sept. 8 in what astronomers call a conjunction. The event marked the closest
09 September 2013, 01:24 PM ET
Coming soon: astronaut Mike Hopkins workout videos from Space and tips from astronaut trainers. More info about NASA's new public outreach fitness program can be found here: http://www.facebook.com/trainastronaut and #trainlikemike.
09 September 2013, 12:36 PM ET
In this fixed camera view, SpaceX's Grasshopper makes a lateral movement of 300 feet before returning to its launchpad, but not before startling a nearby herd of cows.
09 September 2013, 12:01 PM ET
The star of NASA's 'Train Like An Astronaut, Train Like Mike' series (astronaut Mike Hopkins) talks about the importance of staying fit for spaceflight and answers SPACE.com reader questions.
09 September 2013, 11:40 AM ET
The Lunar Atmosphere and Dust Environment Explorer (LADEE) launched toward the moon Friday (Sept. 6) in a dazzling nighttime liftoff. The mission, which is aimed at exploring long-standing mysteries of the moon's atmosphere and lunar dust, is also the fir
09 September 2013, 11:07 AM ET
See spectacular photos of Venus near the moon on Sept. 8, 2013 from stargazers around the world. The celestial pairing wowed amateur astronomers and skywatchers across the U.S., South America and beyond.
09 September 2013, 10:26 AM ET
Photographer Mike Black (mikeblackphotography.com) compiled this time-lapse of the crescent Moon and the Morning Star together on September 8th in Belmar, NJ.
09 September 2013, 10:08 AM ET
This cool space wallpaper shows an optical color image of galaxies overlaid with X-ray data (magenta) from NASA's Nuclear Spectroscopic Telescope Array (NuSTAR).
09 September 2013, 09:42 AM ET
Thrust cells of the Linear Aerospike engine are tested.
09 September 2013, 07:12 AM ET
The strange activities of three Chinese satellites in orbit has space experts guessing at what is taking place in orbit. China launched the satellite trio in July, and some wonder if anti-satellite technology is being tested.
09 September 2013, 06:09 AM ET
The night sky tonight (Sept. 8) brings stargazers one of the last few good opportunities to glimpse the ringed wonder of our solar system — the planet Saturn — in the evening sky, with Venus and a crescent moon joining the celestial show.
08 September 2013, 03:07 PM ET
What was your favorite space news story of the last week?
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