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02 November 2015, 06:51 AM ET
On Thursday (Oct. 29), the White House released two documents that lay out the nation's official plan for mitigating the negative impacts of solar flares and other types of "space weather."
02 November 2015, 06:50 AM ET
After a death-defying dive toward the surface of Saturn's icy moon Enceladus, the Cassini spacecraft has sent back images from its close encounter.
01 November 2015, 09:00 AM ET
Find out what's up in your night sky during December 2015 and how to see it in this Space.com stargazing guide.
01 November 2015, 09:00 AM ET
See what's up in the night sky for November 2015, including stargazing events and the moon's phases, in this Space.com gallery courtesy of Starry Night Software.
01 November 2015, 08:08 AM ET
On Halloween night, while ghouls and goblins did their trick-or-treating, an asteroid made a close flyby of Earth, and is now headed back out into space.
01 November 2015, 12:00 AM ET
See amazing images of the night sky and cosmos in Space.com's gallery of cosmic images posted in October 2015.
31 October 2015, 08:33 PM ET
Ripples of green hover over the rocky horizon in this bone-chilling image of an aurora.
31 October 2015, 07:28 AM ET
You might masquerade as an astronaut for Halloween, but what about when astronauts dress up? Here's how one spacefarer celebrated the spooky season.
31 October 2015, 01:45 AM ET
In the star system DI Cha, two stars glow through a dust ring creating an eerie sight.
31 October 2015, 01:32 AM ET
NASA has called it a "Great Pumpkin." Others have called it "spooky." But this image of a huge asteroid making a Halloween flyby of Earth today looks so much like a skull, it's scary.
31 October 2015, 12:48 AM ET
Paul Sutter shares the recipe for making a spiral galaxy.
31 October 2015, 12:21 AM ET
A huge asteroid the size of the football stadium has a Halloween encounter with Earth today (Oct. 31) and you can watch it online. NASA scientists have dubbed asteroid a cosmic "Great Pumpkin" to celebrate the spooky holiday flyby.
30 October 2015, 01:29 PM ET
The Taurid meteors — also called "Halloween fireballs" — are known for being extremely bright and relatively slow-moving. They will streak through the sky from Oct. 20 to Nov. 30, but will peak from Nov. 5 to Nov. 12.
30 October 2015, 01:28 PM ET
Two new museum exhibits offer the public a chance to 'Be the Astronaut' and 'Journey to Space.' Space Center Houston in Texas and the California Science Center are presenting immersive, hands-on attractions designed to educate guests about spaceflight.
30 October 2015, 01:27 PM ET
The twin fish of Pisces, the golden ram of Aries, and the Triangulum constellation are great targets this month. Meanwhile, Mars, Venus and the moon make a tight pairing early in November and Leonid meteors rain in the middle of the month.
30 October 2015, 12:13 PM ET
Scientists will be treated to a near fly-by of a recently discovered 1300-foot-wide asteroid on Oct. 31st, 2015. They will be using their Deep Space Network's 34-meter (110-foot) DSS 13 antenna in Goldstone, California.
30 October 2015, 11:20 AM ET
As you may already know by now, we're going to have a pretty close encounter on Halloween Saturday (Oct. 31) with a pretty big asteroid. But chances are low that you'll be able to see asteroid 2015 TB145 when it sails by on Halloween. Here's why.
30 October 2015, 07:19 AM ET
One year after the fatal SpaceShipTwo crash, Virgin Galactic is constructing its next passenger vehicle, and working to become a global competitor in the new space frontier.
30 October 2015, 07:08 AM ET
Europa's complex chaos regions — which feature numerous cracks, ridges and other signs of geological activity — may offer a way to sample the moon's huge subsurface ocean of liquid water, which is buried beneath perhaps 60 miles of ice.
29 October 2015, 05:46 PM ET
In space, no one can hear you litter (but that doesn't mean it's a good idea).
29 October 2015, 04:34 PM ET
Astrophotographer Rico Granger took this image in July, 2014 from Hawaii Volcanoes National Park.
29 October 2015, 03:40 PM ET
A new line of science-themed cruises lets passengers stargaze from the open ocean, a unique location far away from city lights.
29 October 2015, 03:13 PM ET
This Halloween, beware of things that lurk in the dark…ness of space! Here's a list of our favorite spooky space movies.
29 October 2015, 12:01 PM ET
A prototype Apollo lunar rover that was sold to a scrapyard and reported by NASA to be lost has been found and may be heading to auction. Just a day after a story that reported the vehicle as destroyed, the moon buggy popped up in a classified ad in an Al
29 October 2015, 11:57 AM ET
The University of Hawaii's UKIRT Observatory is the third telescope to announce its upcoming closure as part of a controversy that arose over instruments on the slope many native Hawaiians consider sacred.
29 October 2015, 08:01 AM ET
California-based startup Made In Space is partnering with home-improvement giant Lowe's to launch a commercial 3D printer to the International Space Station (ISS) early next year, representatives of both companies announced today (Oct. 29).
29 October 2015, 07:49 AM ET
Spoiler Alert! Here's the complicated math problems Mark Watney has to solve in order to survive in "The Martian."
29 October 2015, 07:49 AM ET
Computing orbital trajectories, shepherding chemical reactions and just plain counting potatoes: Surviving in "The Martian" is all about doing the math, which is what makes it feel real.
29 October 2015, 07:28 AM ET
The powerful X-ray flares seen erupting from supermassive black holes are tied to the motion of these behemoths' surrounding "coronas," mysterious features that are sources of high-energy light, a new study suggests.
29 October 2015, 07:28 AM ET
NASA's Dawn spacecraft fired up its thrusters on Friday (Oct. 23) and began spiraling down to an orbit that lies just 230 miles (375 kilometers) from the surface of Ceres, the largest object in the main asteroid belt between Mars and Jupiter.
29 October 2015, 02:57 AM ET
Around the Galaxy Messier 94 a starburst ring is at work birthing new stars into the Universe.
28 October 2015, 11:29 PM ET
The Grammy-nominated musician believes that human awareness is expanding - with the help of science. Comprehending Humanity's significance (and insignificance on our "little blue marble”) gives Potter inspiration and illumination.