07 October 2014, 07:00 AM ET
Huge galaxies have to eat their neighbors to keep growing, a new study reveals. A survey of 22,000 galaxies showed that the largest among them are nowhere near as good at creating stars as smaller ones. Instead, the massive galaxies snack on dwarf galaxie
07 October 2014, 12:13 AM ET
See images of the planned Thirty Meter Telescope, a giant observatory to peer deep into the universe from a mountaintop in Hawaii.
06 October 2014, 10:35 PM ET
This space wallpaper shows ESO's La Silla Observatory with a backdrop of the Milky Way. Established in the 1960s, La Silla was ESO's first observatory to be built in Chile.
06 October 2014, 06:38 PM ET
NASA's Solar Dynamics Observatory captured the filament snaking across the surface for several days. Imagery from September 30th, 2014 to October 5th (when the it rotated out of view) have been compiled in this time-lapse.
06 October 2014, 03:15 PM ET
The folks behind 'Interstellar,' the most anticipated space film of the year, are offering a sneak peek inside the movie's centerpiece spaceship Endurance. And all it takes is a few minutes of your time.
06 October 2014, 03:07 PM ET
The Bigelow Expandable Activity Module (BEAM) is expected to head to the orbiting lab inside SpaceX's Dragon cargo spacecraft in 2015. The BEAM mission will test out expandable-habitat technology, NASA officials have said.
06 October 2014, 07:01 AM ET
Stratolaunch's huge rocket-launching plane could be launching Sierra Nevada Corporation's Dream Chaser space plane into orbit a few years from now.
06 October 2014, 07:00 AM ET
The Milky Way may be home to some 3,000 extraterrestrial civilizations but the vast distances between our galactic cousins will make contact extremely rare, a new study concludes.
05 October 2014, 12:26 PM ET
What was your favorite space news story of the last week?
05 October 2014, 08:53 AM ET
One decade after a huge milestone in commercial spaceflight, Sir Richard Branson thinks his spaceflight company Virgin Galactic's spaceship, is "on the verge" of another breakthrough in the industry.
05 October 2014, 08:17 AM ET
Observers of Wednesday morning's total lunar eclipse might be able to catch sight of an extremely rare cosmic sight.
04 October 2014, 11:01 AM ET
From a stunning image of the Red Planet from India's first spacecraft to a spectacular new photo showing a cluster of stars, don't miss these amazing space images of the week for Oct. 4, 2014.
04 October 2014, 08:36 AM ET
Most of North America will witness a total eclipse of the moon on Wednesday (Oct. 8), but the morning sky will also hold a surprise for intrepid skywatchers interested in seeing another celestial body alongside the eclipsed moon.
04 October 2014, 08:30 AM ET
A NASA-backed study explores an innovative way to dramatically cut the cost of a human expedition to Mars -- put the crew in stasis.
03 October 2014, 06:00 PM ET
On Oct. 4, 2004, the privately funded SpaceShipOne reached outer space for the second time in less than a week, winning the $10 million Ansari X Prize for the team that built the craft and giving a nascent industry a huge shot in the arm.
03 October 2014, 04:37 PM ET
Researchers suggest they may know why the Uranus moon Miranda resembles Frankenstein's monster, a jumble of mismatched parts: Constant squeezing and stretching from Uranus caused the moon to heat up and churn.
03 October 2014, 01:47 PM ET
A NASA satellite charged with staring at the sun captured an incredible image of the star bursting forth with a moderately sized solar flare Thursday.
03 October 2014, 12:25 PM ET
Lynn Sherr — the author of the recently-released book, "Sally Ride: America's First Woman in Space" — paid tribute to the late astronaut Thursday (Oct. 2) on the satirical news program "The Colbert Report."
03 October 2014, 11:17 AM ET
European space officials are eyeing four possible landing sites on Mars for a life-seeking rover that is set to launch in 2018.
03 October 2014, 10:00 AM ET
See photos and images of the biggest solar flares of 2014 in this SPACE.com gallery of photos by NASA spacecraft and solar astronomers.
03 October 2014, 09:55 AM ET
The Vessel-ID System investigation on ISS tracks the Automatic Identification System (AIS) signal that is emitted from sea-faring ships on Earth. It relays ship position reports to tracking stations on the ground.
03 October 2014, 08:32 AM ET
Chad Blakley (lightsoverlapland.com) captured the Aurora Borealis over Abisko National Park in September 2014. He says that they "have enjoyed powerful auroras eight out of the last ten nights."
03 October 2014, 07:00 AM ET
The European Space Agency's Rosetta probe, which arrived in orbit around Comet 67P/Churyumov-Gerasimenko in August after a 10-year deep-space chase, has photographed jets erupting from the icy wanderer's surface.
02 October 2014, 06:10 PM ET
Sunspot AR2172-AR2173 erupted with an M7.3-class flare on October 2nd, 2014. The eruption was not Earth-directed, as it was on the Sun's western limb and rotating out of view (as seen by NASA's Solar Dynamics Observatory).
02 October 2014, 04:20 PM ET
SpaceShipOne launched the era of private spaceflight.
02 October 2014, 04:05 PM ET
SpaceShipTwo should start flying paying customers into space sometime in 2015, Virgin Galactic founder Richard Branson has said.
02 October 2014, 03:54 PM ET
It's not every day you see someone in an astronaut spacesuit randomly walking on the beach. But apparently that's what Kent beachgoers in the United Kingdom found during a jaunt to Margate Beach last weekend, as Yahoo Screen explains in this video.
02 October 2014, 03:47 PM ET
Skywatchers across much of the world will have the chance to see the moon glowing with an eerily red pallor during a pre-Halloween total lunar eclipse next week.
02 October 2014, 03:22 PM ET
When a Russian Soyuz spaceship pulled up to the International Space Station on Sept. 25, it had a distinctly off-kilter look due to a stuck solar wing. Here's how it looked to NASA astronaut Reid Wiseman from inside the orbiting laboratory.
02 October 2014, 02:10 PM ET
The 235 feet (72 meters) tall United Launch Alliance rocket was moved to Launch Complex 37 at the Cape Canaveral Air Force Station on September 30th, 2014 and lifted into vertical position on October 1st, 2014.
02 October 2014, 01:55 PM ET
The bright, hazy smudge at the center of this space wallpaper is a comet known as 67P/Churyumov-Gerasimenko, or 67P/C-G for short.
02 October 2014, 01:28 PM ET
The countdown is underway for the removal of NASA's iconic launch countdown clock at Kennedy Space Center in Florida. The large digital clock, which has stood for more than four decades, is being replaced by a modern display screen with more capabilities.