11 January 2013, 06:24 PM ET
The winners programmed testing satellites that maneuvered in the cabin of the International Space Station.
11 January 2013, 10:26 AM ET
The satellites spat dust clouds and maneuvered through space junk fields.
08 January 2013, 10:50 AM ET
China could be planning an anti-satellite test as soon as Jan. 11, analysts say.
07 January 2013, 06:00 AM ET
The space trash compactor could give new life to old water bottles, clothing, duct tape and other astronaut waste.
04 January 2013, 04:28 PM ET
The test could occur as early as next week, some experts say.
14 November 2012, 11:32 AM ET
DARPA's SpaceView project allows stargazers to report sightings through the SpaceView website.
05 November 2012, 12:38 PM ET
NASA and the Air Force are building a satellite just to obliterate it in the lab.
24 October 2012, 04:57 PM ET
No immediate risks to the International Space Station or other satellites have been identified.
08 October 2012, 12:09 PM ET
A satellite that's become a piece of space junk could become a liability for ESA.
06 October 2012, 08:17 PM ET
The space debris may mean it takes SpaceX's private Dragon space capsule longer to reach the station.
28 September 2012, 11:42 AM ET
An old Russian satellite fragment and Indian rocket body passed near the space station on Thursday and Friday.
26 September 2012, 03:35 PM ET
Pieces of an old Russian satellite and Indian rocket will pass near the space station on Thursday and Friday.
22 August 2012, 12:17 PM ET
Russian spacewalkers lofted a 21-inch-wide satellite - weighing 20lbs. - into orbit. It will be used as a tracking target for monitoring space junk. Veteran skywatcher Kevin Fetter caught a fly-by of the satellite over Ontario on August 20, 2012.
10 July 2012, 07:00 AM ET
Test your knowledge of the satellites around Earth in this quiz about our planet's artificial satellites.
25 June 2012, 11:35 AM ET
The U.S. military currently tracks roughly 22,000 pieces of debris in orbit.
11 May 2012, 06:45 AM ET
Envisat is roughly the size of a school bus.
09 May 2012, 10:48 AM ET
After 10 years in space, the giant satellite Envisat's mission is no more.
30 April 2012, 05:05 PM ET
SETI's Allen Telescope array will help track orbital debris
20 April 2012, 05:17 PM ET
The massive Envisat satellite mysteriously went silent on April 8.
16 April 2012, 11:19 AM ET
The Envisat satellite is 10 years old and the size of a school bus.
09 April 2012, 03:46 PM ET
The remains of the Molniya 1-89 satellite crashed in the Pacific Ocean on April 7.
05 April 2012, 04:29 PM ET
Focused pulses of atmospheric gases could be fired into the path of space trash.
24 March 2012, 01:43 AM ET
Space station astronauts will take shelter in Soyuz lifeboat capsules when the debris passes by within 9 miles.
12 March 2012, 01:44 PM ET
Lockheed Martin's prototype system locked onto orbiting objects in a recent test.
24 February 2012, 04:12 PM ET
With a bit of effort, the world could keep space junk at current levels for 200 years.
24 February 2012, 01:19 PM ET
The spherical object landed near a house and damaged trees as it fell to the surface.
16 February 2012, 11:23 AM ET
Aerospace firm MDA is developing a spacecraft called the Space Infrastructure Servicing vehicle to refuel satellites.
15 February 2012, 03:04 PM ET
See how Switzerland plans to clean up space junk using a small claw-equipped satellite.
15 February 2012, 02:33 PM ET
The Swiss CleanSpace One satellite will test ways to clean up space junk.
15 February 2012, 12:25 PM ET
The Swiss Space Center is developing a satellite, CleanSpace One, to tackle the growing danger of space debris orbiting Earth. The first model will rendezvous with an obsolete satellite, grab it and disintegrate with it in a controlled de-orbit.
30 January 2012, 05:54 PM ET
The sun's violent activity expands Earth's atmosphere, which increases the rate that space junk falls from orbit.
29 January 2012, 01:12 PM ET
The space junk was leftover debris from China's 2007 anti-satellite test, NASA says.
25 January 2012, 11:56 AM ET
The failed Mars probe Phobos-Grunt crashed to Earth on Jan. 15.
21 January 2012, 07:00 AM ET
Russia's ill-fated Phobos-Grunt spacecraft has been the centerpiece of conflicting reports and conspiracy theories.
17 January 2012, 06:42 PM ET
International cooperation is needed to keep space safe and secure over the long-haul, Secretary of State Clinton says.
16 January 2012, 04:56 PM ET
Questions still surround the precise location of Phobos-Grunt's fall.