On Tuesday, two satellites, Kosmos 2251 and Iridium 33, collided in the sky above Siberia. Experts are watching the debris cloud as it expands, trying to keep track of each piece dangerous to space navigation. Spaceweather.com is broadcasting a live audio feed of the radar tracking signals as the pieces of satellite pass over the USAF Space Surveillance Radar facility in Texas. There is more information at the Spaceweather site.
