26 November 2013, 09:45 PM ET
Experts with NASA say another comet's tail-clipping encounter with the sun in 2007 presents a forbidding example of what could happen to Comet ISON.
26 November 2013, 05:29 PM ET
Astronomers have found a mind-bogglingly large structure — so big it takes light 10 billion years to traverse — in a distant part of the universe.
26 November 2013, 05:05 PM ET
NASA's STEREO-A spacecraft has had its eyes set on the comet for the past few days and has delivered the best time-lapse to date. Comet ISON and the smaller Comet Enke, along with Earth and Mercury can be seen. (looped 3X)
26 November 2013, 04:37 PM ET
The crescent moon and Mars are visible close together just above the eastern horizon on these late November mornings. The Red Planet is dim now but will brighten considerably by next spring, when it will be much closer to Earth.
26 November 2013, 04:03 PM ET
If you are still wondering what gift to get the astronauts living on the International Space Station this holiday season (and if not, why not?), you can rule out a certain bestselling book.
26 November 2013, 03:00 PM ET
British billionaire Sir Richard Branson said his company Virgin Galactic is now accepting the digital-only currency bitcoin for its commercial spaceflights aboard SpaceShipTwo.
26 November 2013, 11:01 AM ET
San Francisco-based startup Planet Labs delivered the 28 tiny satellites that will make up its "Flock 1" fleet to NASA's Wallops Flight Facility in Virginia earlier this month. The constellation is slated to blast off aboard a private cargo vessel on Dec.
26 November 2013, 10:21 AM ET
NASA Scientist Dr. Michelle Thaller talks to SPACE.com's @TariqjMalik about the possible 'comet of the century' two days prior to its Nov. 28th, 2013 date with the Sun.
26 November 2013, 08:40 AM ET
The fiery plunge of a European satellite that fell to Earth earlier this week was captured on camera. A man snapped an image of the European Space Agency's (ESA) doomed GOCE spacecraft streaking across the sky above the Falkland Islands.
26 November 2013, 07:46 AM ET
The 1-ton Curiosity rover resumed science operations on Saturday (Nov. 23), six days after mission engineers noticed an odd voltage change and stood the robot down to investigate.
26 November 2013, 07:45 AM ET
SpaceX delayed the planned launch of the huge SES-8 communications satellite on Monday (Nov. 25) after a technical glitch with its upgraded Falcon 9 rocket. See what happened here.
26 November 2013, 07:30 AM ET
If life does exist anywhere else in the universe, it may only be fleeting. Now scientists are researching how signs of life might look on dying planets.
25 November 2013, 07:16 PM ET
If you look to the sky early Tuesday (Nov. 26) morning, you might get a view of what can only be described as a "double planet" visible through the brightening dawn twilight.
25 November 2013, 07:01 PM ET
The manager of NASA's Near-Earth Object Program office Don Yeomans, explains what will be left, if anything, of the possible 'comet of the century' after its date with the Sun (Nov 27th, 2013).
25 November 2013, 06:15 PM ET
A Soviet-era ballistic missile shot out of an underground silo in southern Russia and rocketed into orbit Thursday (Nov. 21) with 32 satellites for students, corporations and government agencies from 18 countries on five continents.
25 November 2013, 04:00 PM ET
An unmanned cargo-carrying spacecraft launched on its way toward the International Space Station today. The Progress 53 vessel will deliver tons of food, fuel and other supplies when it arrives at the orbiting lab on Friday.
25 November 2013, 03:06 PM ET
NASA's Messenger spacecraft snapped new images of Comet ISON on Nov. 19 as the object sped by Mercury. Meanwhile, a phalanx of sun-studying probes will watch ISON's close encounter with the sun on Thursday (Nov. 28).
25 November 2013, 02:30 PM ET
The ESA's Martian lander will bear the name of the Italian astronomer that once provided detailed maps of the Red Planet's surface. Meet the new Schiaparelli.
25 November 2013, 02:16 PM ET
National parks and several public observatories have opportunities for the public to catch a view of Comet ISON as astronomers watch it plunge towards the sun.
25 November 2013, 12:04 PM ET
The early morning of Tuesday, Nov. 26, will be the last chance to spot Comet ISON streaking just above the horizon before it makes its Thanksgiving Day slingshot around the sun, according to NASA.
25 November 2013, 10:24 AM ET
In 2007, a coronal mass ejection from the Sun tore off Comet Enke's tail. As Comet ISON approaches its closest approach to the Sun, it could suffer the same fate.
25 November 2013, 10:16 AM ET
Read our telescopes for beginners review to find the best telescope for you.
25 November 2013, 09:08 AM ET
The private spaceflight company SpaceX is counting down to a critical commercial satellite launch in Florida today (Nov. 25), and you can watch the launch attempt live online.
25 November 2013, 07:01 AM ET
Jupiter's Great Red Spot has been furiously swirling across the planet for hundreds of years, confounding theories that suggest it should have died out long ago. Researchers now think they know the secret of the huge storm's longevity.
24 November 2013, 10:52 AM ET
What was your favorite space news story of the last week?
24 November 2013, 09:30 AM ET
Comet ISON is slated to skim just 730,000 miles above the solar surface on Nov. 28. ISON has brightened considerably as it’s zoomed closer to the sun recently, giving researchers interested in comet composition a lot to look forward to.
23 November 2013, 03:40 PM ET
From an amazing MAVEN spacecraft launch toward the Red Planet to stunning images by astronauts aboard the International Space Station, don't miss these amazing space photos of the week for Nov. 23, 2013.
23 November 2013, 02:24 PM ET
From the dazzling nighttime rocket launch to a spectacular set of photos showing the evolution of Comet ISON over the last few months, don't miss these stunning night sky photos by stargazers and SPACE.com readers.
23 November 2013, 09:47 AM ET
The potentially dazzling Comet ISON is currently visible to the unaided eye, but its future all depends in how it reacts to a close Thanksgiving encounter with the sun, co
23 November 2013, 08:35 AM ET
The incoming Comet ISON is now in the home stretch of its long-awaited hairpin loop around the sun on Thanksgiving Day (Nov. 28), making it a great target for amateur astronomers and stargazers. Here are some tips to see the comet.
22 November 2013, 07:40 PM ET
JAXA's ISS Program Manager Masazumi Miyake explains how 3 nanosatellites (aka cubesats) were deployed from the Japanese 'Kibo' Experimental Module on Nov. 19. 2013.
22 November 2013, 06:31 PM ET
See amazing images by dedicated night sky observers and amateur astronomers alike.