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18 August 2015, 12:30 PM ET
These comets were not seen in abundance until the SOHO, STEREO, and SDO observatories were put into service. Most stem from the Kreutz family of comets, fragments of a large comet that broke up several hundred years ago.
18 August 2015, 10:00 AM ET
Astrophotographer Adam Woodworth took this image of an aurora from Norstead, a Viking village replica.
18 August 2015, 07:41 AM ET
The infamous Mars Hoax that has circulated widely through the Internet since its first appearance in 2003 — when it originated
18 August 2015, 07:39 AM ET
Every space-exploration mission could soon by manned. That's the vision of SpaceVR, a startup that aims to launch virtual-reality cameras to the International Space Station, the moon, Mars and anywhere else that spacecraft may travel in the future.
18 August 2015, 07:01 AM ET
The upcoming addition of a private inflatable "room" to the International Space Station could help pave the way for colonies on the moon and Mars.
18 August 2015, 12:04 AM ET
When the magnetosphere shields Earth from these solar particles, they get funneled toward the polar regions of our atmosphere.
17 August 2015, 05:39 PM ET
"Star Wars"-themed lands will be added to the Disneyland and Walt Disney World resorts — located in Anaheim, California, and Orlando, Florida, respectively — Walt Disney Co. representatives announced at the D23 Expo 2015 over the weekend.
17 August 2015, 03:50 PM ET
This stunning image of a purple and gold aurora was taken by Jason Matias at the Wild Horses Monument on the Columbia River Gorge in Washington.
17 August 2015, 03:49 PM ET
Astronaut Scott Kelly's imagery of Earth and Space from the International Space Station has been nothing short of extraordinary. They've been posted to his Facebook page, with personalized short descriptions since the beginning of July.
17 August 2015, 03:30 PM ET
After nearly 20 years gazing at the sun, the SOHO spacecraft is about to spy its 3,000th comet.
17 August 2015, 01:39 PM ET
After two giant explosions in Tianjin, a black plume of smoke snaked over China's Bohai Sea.
17 August 2015, 01:00 PM ET
Bow, arrow, milk ladle or teapot — the constellation called the Archer appears as many things besides, and you can find it down near the southern horizon this week.
17 August 2015, 12:48 PM ET
Forty-five years ago today (Aug. 17), the then-Soviet Union launched Venera 7, a spacecraft that would eventually become the first probe ever to send data from the surface of Venus, if only for a few brief minutes.
17 August 2015, 11:58 AM ET
Neutron stars are some of the strangest objects in the universe. This video describes that it would be like to live on one, and what horrible things they would do to you!
17 August 2015, 11:28 AM ET
Space enthusiasts and sci-fi fans, rejoice: The space elevator may be one step closer to reality. A Canadian space company has been awarded a patent for a space elevator that would reach 12 miles (20 kilometers) above the surface of our planet.
17 August 2015, 10:10 AM ET
NASA's retired space shuttle Endeavour, on exhibit in Los Angeles since 2012, has been called back into service — or rather, parts of it have — for the benefit of the International Space Station. NASA will remove four water tanks.
17 August 2015, 07:20 AM ET
A tilted orbit and a thick atmosphere could help a distant super-Earth hold onto oceans of water, making it a possible location for life to evolve.
17 August 2015, 07:00 AM ET
The Cassini spacecraft will make one last close flyby of Saturn's moon Dione on Monday (Aug. 17), in search of clues about the moon's strange features.
17 August 2015, 07:00 AM ET
Something mysterious is happening on the surface of Pluto: No matter how much nitrogen the atmosphere releases into space, it's still chock-full of the stuff. New work examines the possible culprits for the stealthy nitrogen resupply.
16 August 2015, 09:40 AM ET
The discovery of a baby Jupiter could be an important step in rewriting the book on planet formation.
16 August 2015, 09:00 AM ET
NASA astronauts eat space-grown lettuce for the first time, and burying people on the moon gets easier — here are Space.com's best space stories of the week.
15 August 2015, 07:00 AM ET
From the magnificent Milky Way to a tribute to Leonard Nimoy, don't miss these stunning space images.
14 August 2015, 05:53 PM ET
It's not too late to catch a meteor.
14 August 2015, 05:30 PM ET
A new exhibit of satellite photography is on display in the U.N. Headquarters Visitors' Lobby in New York City from July 9 to September 9.
14 August 2015, 05:30 PM ET
All of the images at the My Planet from Space exhibit, showing in New York until Sept. 9, were taken by satellites to help researchers diagnose the state of the planet. The exhibit's curator, Viviana Panaccia, wants its viewers to do the same.
14 August 2015, 05:22 PM ET
It's been a wild 2015 for United States weather, and more changes are afoot when El Niño takes hold in the Pacific, NASA said.
14 August 2015, 02:43 PM ET
If you see a magnetar, don't pick it up.
14 August 2015, 01:48 PM ET
SyFy Channel will launch TV adaptations of two epic science fiction books in December with two more in the works. The shows are 'Childhood's End' based on a novel by Arthur C. Clarke, 'The Expanse,' 'Gateway' and 'Hyperion.'
14 August 2015, 07:00 AM ET
Attempts to recreate the conditions surrounding Jupiter's Great Red Spot in a lab on Earth are helping scientists to understand the mystery of the enormous storm.
14 August 2015, 07:00 AM ET
Daily sunspot counts going back 400 years have been revisited by scientists who say the numbers aren't quite right, suggesting solar activity has not varied as wildly as previously thought.
14 August 2015, 06:18 AM ET
Located at the heart of a dwarf galaxy known as RGG 118, the black hole contains about 50,000 times more mass than the sun. It's therefore less than half as heavy as the second-smallest known supermassive black hole, researchers said.
14 August 2015, 01:18 AM ET
Matter and antimatter appear to be perfect mirror images of each other, scientists have discovered with unprecedented levels of precision, foiling hope of solving the mystery as to why there is far matter than antimatter in the universe.