American, Russian satellites collide

An American and a Russian communications satellite collided with each other hundreds of kms above the Earth and the scientists are monitoring on orbital debris created.
The collision occured over Serbia on 10th February, 2009 was of high impact said NASA officials and it will take weeks to determine the full magnitude of the crash and threat if any to other satellites.
However NASA believes that there is low threat to International Space Station and its three astronauts.
There has been four other cases in which space objects have collided accidentally in orbit NASA said but those were considered minor and involved parts of spent rockets or small satellites.