13 November 2013, 01:01 PM ET
Scientists found evidence of nickel and iron in the superfast jets emitted by a relatively small black hole, suggesting that "normal" matter plays a bigger role in these enigmatic structures than does exotic antimatter.
13 November 2013, 09:57 AM ET
NASA's next mission to Mars set to explore the Red Planet's atmosphere is getting ready to launch on Monday (Nov. 18).
13 November 2013, 07:01 AM ET
Comet ISON is already visible in binoculars now and could put on a great show next month if it survives its close solar flyby on Nov. 28. Here's a rundown of the best instruments for viewing the incoming sungrazer.
13 November 2013, 07:01 AM ET
The legacy of the famed astrobiologist and science communicator Carl Sagan is now available to people around the world, after the Library of Congress opened The Seth MacFarlane Collection of the Carl Sagan and Ann Druyan Archive on Tuesday.
12 November 2013, 06:34 PM ET
The car-size Curiosity rover went into safe mode Thursday, a few hours after receiving a software update from its handlers on Earth. But mission engineers identified and fixed the problem, allowing Curiosity to resume normal operations on Sunday.
12 November 2013, 06:01 PM ET
Have you heard that an American cyberweapon infected the International Space Station? It's not true, and here's why.
12 November 2013, 04:27 PM ET
A NASA probe has revealed an unprecedented view of Saturn from space, showing the entire gas giant backlit by the sun with several of its moons and all but one of its rings, as Earth, Venus and Mars all appear as pinpricks light in the background.
12 November 2013, 03:30 PM ET
Starting next fall, astronauts on the International Space Station won't have to wait months for replacement parts to be launched from Earth. Instead, they can use a newly arrived 3D printer to fabricate the tools and materials they need.
12 November 2013, 07:44 AM ET
While all eyes have been on the potentially dazzling Comet ISON as it approaches the sun, one of the most studied comets in history — called Encke's Comet — will make its closest pass with the sun just one week before ISON.
12 November 2013, 07:10 AM ET
Mysterious cosmic rays constantly bombard Earth from outer space. Now scientists find these energetic particles could limit where life as we know it might exist on alien planets.
12 November 2013, 06:00 AM ET
The most luminous objects in the universe keep getting more mysterious. Astronomers have discovered a new type of quasar — an incredibly bright galactic core powered by a supermassive black hole — that current theory fails to predict.
11 November 2013, 05:37 PM ET
Curiosity rebooted its software on Thursday, shortly after its handlers had uploaded new flight software to the 1-ton rover. It was the first time Curiosity had experienced such a fault-related reboot since landing on Mars in August 2012.
11 November 2013, 02:19 PM ET
The sun's polarity is getting closer to flipping. The star's northern hemisphere's polarity has already reversed, and the southern hemisphere should follow suit soon, scientists say.
11 November 2013, 02:14 PM ET
On 9 November 2013, powerful northern lights danced over Abisko National Park in Sweden. Chad Blakley (lightsoverlapland.com) captured the show and compiled this time-lapse.
11 November 2013, 11:35 AM ET
Skywatchers around the world have recently used binoculars to spot Comet ISON, which is streaking toward a close encounter with the sun on Nov. 28 that will bring the icy wanderer within just 730,000 miles of the solar surface.
11 November 2013, 11:11 AM ET
The Sun's magnetic field is close to reversing its polarity. Its is an event that occurs every 11 years. A senior scientist at the Wilcox Solar Observatory explains what will happen.
11 November 2013, 11:01 AM ET
Sunspot AR1890 has erupted with another X class flare on November 10th, 2013. Also, a Sunspot that just recently begun its Earth-facing journey (AR1895) has made its presence know with an M2 flare on Nov. 11th.
11 November 2013, 07:04 AM ET
The cosmonauts who took an Olympic torch on a spacewalk outside of the International Space Station carried out the symbolic relay wearing a surprise space patch showing the icon of the 2014 Winter Games.
11 November 2013, 06:00 AM ET
Over the next decade, NASA and the European Space Agency aim to launch a handful of spacecraft that should discover many thousands of additional exoplanets and characterize some of the most promising new finds in detail.
10 November 2013, 11:00 PM ET
The European GOCE satellite met its fiery doom in Earth's atmosphere late Sunday (Nov. 10), succumbing to the same gravitational pull of the planet that it spent the last four years mapping in unprecedented detail. See how GOCE died here.
10 November 2013, 11:00 PM ET
A rundown of some of the biggest spacecraft to smash into Earth beyond their operators' control.
10 November 2013, 10:13 PM ET
A Russian Soyuz space capsule landed safely on the steppe of Kazakhstan Sunday (Nov. 10), returning cosmonauts and two astronauts to Earth along with a one other precious item: the Olympic torch.
10 November 2013, 08:25 PM ET
See photos from landing day for the International Space Station's Expedition 37 crew, cosmonaut Fyodor Yurchikhin, NASA astronaut Karen Nyberg and Italy's Luca Parmitano. They were returning the Olympic torch to Earth on a Soyuz capsule.
10 November 2013, 09:41 AM ET
A Russian Soyuz space capsule will bring the Olympic torch and three residents of the International Space Station back to Earth tonight (Nov. 10) and you can watch the landing live online. Here's how to watch the Soyuz landing online.
10 November 2013, 07:09 AM ET
A European satellite at the end of its mission is expected to fall out of space tonight. The only question is where its charred and twisted remains may fall. The GOCE satellite mayto Earth sometime Sunday night (Nov. 10) or early Monday.
10 November 2013, 07:00 AM ET
The European Space Agency's GOCE satellite launched in 2009 to study the Earth's gravity. See images of and from GOCE, the Gravity Field and Steady-State Ocean Circulation Explorer.
09 November 2013, 03:59 PM ET
Russian Cosmonauts Oleg Kotov and Sergey Ryazanskiy took an unlit torch that will be used at the 2014 Winter Olympics in Sochi, Russia on a spacewalk. They were installing and replacing experiments and hardware for the ISS as well.
09 November 2013, 03:43 PM ET
ESA's Gravity field and steady-state Ocean Circulation Explorer (GOCE) mapped the Earth's gravity with precision. Find out about the science it performed in this end of mission video.
09 November 2013, 09:57 AM ET
See photos of the Olympic torch relay by spacewalking cosmonauts on Nov. 9, 2013. The torch will be used during the 2014 Winter Games in Sochi, Russia.
09 November 2013, 09:30 AM ET
Olympic history unfolded outside the International Space Station Saturday morning (Nov. 9) as Russian cosmonauts Oleg Kotov and Sergey Ryazanskiy carried an unlit Olympic torch on a symbolic spacewalk relay for the 2014 Games.
09 November 2013, 08:15 AM ET
See photos from the launch Russia's Soyuz TMA-11M spacecraft to the International Space Station carrying the Olympic torch for the 2014 Sochi Winter Olympics along with the station's Expedition 38 crew on Nov. 6, 2013 ET (Nov. 7 local time).
09 November 2013, 02:10 AM ET
Russian cosmonauts Sergey Ryazanskiy and Oleg Kotov will venture outside the International Space Station with the Olympic torch Saturday (Nov. 9).