11 April 2014, 04:45 PM ET
A slightly dazed group of college students they stepped off a ZERO-G plane to resounding cheers Thursday (April 10), pumping their fists to celebrate a weightless voyage packed with science experiments, including one test that sparked tiny balls of fire.
11 April 2014, 01:00 PM ET
The ripples from violent cosmic collisions can be felt far across the universe, and thanks to a new, sensitive detector expected to start collecting data next year, scientists might be able to see evidence of those ripples from Earth for the first time.
11 April 2014, 11:50 AM ET
The Laser Interferometer Gravitational-Wave Observatory (LIGO) is a facility dedicated to the detection of cosmic gravitational waves and the measurement of these waves for scientific research.
11 April 2014, 09:52 AM ET
A supernova remnant called G352.7-0.1 has swept away about 45X the Sun's mass worth of material during its expansion. Researchers believe that it interacted with a massive amount of dense material. -- X-Ray Universe Videos: http://goo.gl/zciTL
10 April 2014, 10:40 PM ET
This space wallpaper is a Hubble Space Telescope image of ‘El Gordo,’ which is the nickname given to the most massive cluster of galaxies ever seen to exist when the universe was just half of its current age of 13.8 billion years.
10 April 2014, 05:21 PM ET
Using laser beams, scientists could detect the physical distortions caused by passing gravitational waves. See how they'll do it with the Laser Interferometer Gravitational-Wave Observatory, or LIGO, in this Space.com Infographic.
10 April 2014, 04:01 PM ET
Stars may be born much easier than previously thought, astrophysicists say. Scientists have developed a way to determine the details of star birth in dusty clouds using dust extinction maps, or observations of how dust scatters and absorbs light.
10 April 2014, 01:00 PM ET
NASA is asking everybody on Earth to help create a new image of the planet composed entirely of selfies taken during Earth Day on April 22.
10 April 2014, 12:38 PM ET
A team of researchers detected a pair of faraway objects that could be a free-floating Jupiter-like gas giant and its moon or a small star hosting a planet about 18 times more massive than Earth. The duo's identity will likely never be known.
10 April 2014, 12:32 PM ET
The countdown to weightlessness begins. On Wednesday, I got a barf briefing. On Thursday, I'll get an Army-green flight suit. And on Friday, I'll finally get a chance to experience life without gravity (albeit in brief increments).
10 April 2014, 11:21 AM ET
Alaska Aurora Tour group teacher/photographer John Chumack (http://GalacticImages.com)captured the Northern Lights above the Chena Hot Springs Resort, atop Charlie Dome. The next tour is schedule for 2015: http://goo.gl/TD64VQ
10 April 2014, 07:00 AM ET
The enormous collision occurred 3.26 billion years ago and involved an asteroid 23 to 36 miles across — four to six times wider than the dino-killing space rock. The impact created a crater about 300 miles wide, researchers said.
10 April 2014, 07:00 AM ET
While the supernova remnant, known as DEM L241, has been known since the 1970s, the companion star remained invisible until NASA's Chandra X-Ray Observatory recently examined the region.
10 April 2014, 01:12 AM ET
The northern lights, captured over the snow of Maine.
09 April 2014, 05:17 PM ET
This is not the first time that people have seen more in Curiosity's images than is actually there. In September 2012, for example, the rover photographed a landscape that appeared to contain a rodent crouching between two rocks.
09 April 2014, 04:58 PM ET
09 April 2014, 04:58 PM ET
A series of four total lunar eclipses in a row is called a tetrad, or four Blood Moons. See how lunar eclipse tetrads work in this Space.com infographic.
09 April 2014, 04:48 PM ET
A new documentary trailer making its way around the Internet this week seems to make the case for a long-outdated theory about how the universe works.
09 April 2014, 03:18 PM ET
When two stars collide or a massive star blows up the fabric of the universe warps and springs back, sending gravitational waves across the cosmos. The wave motion would be very tiny. But to watch it, scientists must build very large instruments.
09 April 2014, 10:29 AM ET
The batteries that power NASA's Lunar Reconnaissance Orbiter need sunlight to recharge, and the probe will fly in darkness for long periods during the total lunar eclipse, which will be visible throughout the Western Hemisphere on April 14 and 15.
09 April 2014, 09:30 AM ET
A cosmic diamond ring sparkles 2,500 light-years from Earth. A powerful telescope in Chile has captured an image of a planetary nebula — one of the last stages of life for a star like the sun — and a bright star looking eerily similar to a diamond ring.
09 April 2014, 06:00 AM ET
Shine bright like a diamond: A chance alignment of a blue planetary nebula, a vivid foreground star, and the ESO’s Very Large Telescope in Chile produces an apparition like an engagement ring.
08 April 2014, 11:29 PM ET
This cool space wallpaper is a radar image from the Cassini orbiter showing dark streaks carved into dunes on Saturn’s moon Titan.
08 April 2014, 05:41 PM ET
NASA’s Mars rover Curiosity has begun science operations in a new area of study nicknamed “the Kimberly” after the Western Australian region.
08 April 2014, 04:45 PM ET
'Super Planet Crash' challenges the public to create a planetary system with various kinds of objects, ranging from Earth-size planets to gas giants to more massive dwarf stars.
08 April 2014, 02:30 PM ET
Though UFO enthusiasts may beg to differ, mission team members say that a bright flash of light visible in two images taken by the Curiosity rover on April 2 and April 3 almost certainly has a perfectly ordinary explanation.
08 April 2014, 01:21 PM ET
The Mars Science Laboratory photographed what appears to be a beam of light emanating from the surface of the Red Planet on April 3rd, 2014. NASA has yet to make an announcement on what it may be.
08 April 2014, 11:52 AM ET
See stunning photos of the night sky and sun as seen by stargazers around the world in this Space.com photo gallery for April 2014 made up of images sent in by Space.com readers.
08 April 2014, 11:12 AM ET
08 April 2014, 08:11 AM ET
Europe's Sentinel-1 satellite will provide all-weather, day-or-night radar images for numerous operational services. See launch photos for the Sentinel satellite program's first launch.
08 April 2014, 07:00 AM ET
Scientists have begun realizing that spaceflight can cause serious and perhaps permanent vision problems in astronauts. NASA is working hard to understand the issue, which could present a major hurdle to mounting manned missions to Mars.