29 May 2014, 10:39 PM ET
The moon shines because its surface reflects light from the sun. But because of its orbit around Earth, the lighting goes through phases.
29 May 2014, 12:17 PM ET
Three physicists who helped further the theory that the universe experienced an extremely rapid burst of expansion right after it was born — a process known as cosmic inflation — were awarded the prestigious Kavli Prize in Astrophysics today (May 29).
28 May 2014, 03:49 PM ET
When Google took credit for a 2012 UFO sighting, the image it offered bore little resemblance to photos at hand. That's because the balloon was a prototype, and one that had gone rogue, says a Google team leader.
28 May 2014, 01:01 PM ET
Our Milky Way galaxy is a 'magnetic dynamo’ generating a generally spiral-shaped field. ESA's Planck spacecraft’s edge on view makes the whorls of magnetic field lines appear a bit like a fingerprint.
28 May 2014, 12:56 PM ET
Leading scientists, artists and thinkers from around the world will convene here this week for the World Science Festival, and you can watch the talks live in a webcast.
27 May 2014, 10:24 AM ET
To compensate for microgravity aboard the Space Station, printer maker "Made In Space" must alter mechanical configuration liquid handling. The company has taken its prototype on Zero-g flights for testing.
27 May 2014, 02:45 AM ET
Comet Lovejoy's fleeting visit inspired many.
27 May 2014, 12:16 AM ET
This space wallpaper shows the remnant of Supernova 1987A seen in light of very different wavelengths.
24 May 2014, 10:26 AM ET
Over the next two decades, scientists should have results from the three methods of searching for alien life.
24 May 2014, 02:24 AM ET
A new meteor shower from the Comet 209P/LINEAR could be a spectacular display tomorrow night (May 23). NASA's Bill Cooke discusses the rare Camelopardalid meteor shower on Space.com.
23 May 2014, 03:54 PM ET
Meteor showers aren't merely skywatching spectacles; they sometimes offer forensic clues into the past lives of comets. That's why some scientists will stay up late Friday night to glimpse the potential the celestial fireworks of a new meteor shower.
23 May 2014, 03:40 PM ET
Material blasted off Mars from meteor impacts may have scarred the surface of Phobos, one of the Red Planet's two tiny moons, a new study suggests.
23 May 2014, 12:38 PM ET
Astronomer Carl Hergenrother first photographed Comet 209P/LINEAR in September 2013 and again in May 2014 (seen in video). The possible meteor shower may hold clues to how active the comet was in the past.
23 May 2014, 11:53 AM ET
On May 24th, Earth will for the first time pass through a cloud of dust that comet 209P/LINEAR behind in the 1800's. Experts say it could rival the year's best Perseids shower, with up to 200 meteors per hour.
23 May 2014, 11:26 AM ET
A new meteor shower from the Comet 209P/LINEAR could spark a potential meteor storm overnight tonight and Saturday (May 23 and 24), but scientists can only wait to see if it sizzles or fizzles. There are several webcasts of the meteor shower too.
22 May 2014, 12:02 AM ET
Floating at the center of this cool space wallpaper is a lidless purple eye, staring back at us through space. This ethereal object, known officially as [SBW2007] 1 but sometimes nicknamed SBW1, is a nebula with a giant star at its center.
21 May 2014, 12:07 AM ET
The stunning space wallpaper depicts a pulsar wind nebula, produced by the dense remnant of a star that exploded in a supernova. What's left behind is a pulsar, called PSR B1509-58 (B1509 for short).
20 May 2014, 04:41 PM ET
The next episode of "Cosmos: A Spacetime Odyssey" airs Sunday (May 18), and it promises to delve into big questions about death and immortality.
20 May 2014, 04:24 PM ET
A new meteor shower that will blaze up in the early hours of Saturday morning could be spectacular, if Jupiter's gravity has shepherded particles shed by Comet 209P/LINEAR tightly together.
20 May 2014, 04:10 PM ET
The space agency's Low-Density Supersonic Decelerator test vehicle is now fully assembled at the U.S. Navy's Pacific Missile Range Facility in Hawaii — the site of its first flight trial, which is currently scheduled for June 3.
19 May 2014, 11:29 PM ET
This amazing space wallpaper is Gemini Planet Imager’s first light image of Beta Pictoris b—a planet orbiting the star Beta Pictoris. The star, Beta Pictoris, is blocked in this image by a mask so its light doesn’t interfere with the light of the planet.
16 May 2014, 12:41 PM ET
There are many mysteries about the enigmatic ringed gas giant, but the curious mechanism behind Saturn’s ‘spokes’ is one of the more intriguing puzzles.
16 May 2014, 12:35 PM ET
Whenever humans finally touch down on Mars, they'll be following in the footsteps of many brave robotic pioneers. Unmanned missions to the Red Planet have greatly increased scientists' and engineers' ability to eventually pull off a manned Mars effort.
16 May 2014, 12:19 PM ET
Jupiter's Great Red Spot — the most powerful storm in the solar system — is at its smallest observed size yet, and scientists aren't sure why.
16 May 2014, 12:12 PM ET
The bold asteroid-redirect plan may also feature the first in-space test of the "enhanced gravity tractor" technique, which could help steer dangerous space rocks away from Earth.
14 May 2014, 07:01 PM ET
A new study finds in an increase in lightning strikes after large solar winds. The findings suggest that particles from the sun may interact with the atmosphere to make lightning more likely.
14 May 2014, 11:12 AM ET
Discovery of runaway companion star points to a mass-exchange during a supernova explosion; weird conditions that lead to the weird, violent object called a magnetar. -- Full Story: http://goo.gl/Xn8xIt
14 May 2014, 12:47 AM ET
This space wallpaper is a long-exposure Hubble Space Telescope image of massive galaxy cluster Abell 2744. The image shows some of the faintest and youngest galaxies ever detected in space.
13 May 2014, 12:38 AM ET
This beautiful space wallpaper is an artist's illustration of Supernova 1987A, which is based on real data and reveals the cold, inner regions of the exploded star's remnants (in red) where tremendous amounts of dust were detected and imaged by ALMA.
12 May 2014, 03:06 PM ET
Bone loss is a serious issue that has plagued astronauts since the dawn of the Space age. In the microgravity environment bones are remodeled with a decrease in mineral density.
12 May 2014, 12:56 AM ET
This dazzling space wallpaper of the Antennae Galaxies shows obvious signs of chaos. Clouds of gas are seen in bright pink and red, surrounding the bright flashes of blue star-forming regions.
09 May 2014, 10:09 PM ET
Capturing Saturn as it slips gently behind the moon.