Collision!

Two communications satellites collided above the Earth (about 500 miles up). One was a part of the Iridium "constellation" of satellites, the other appears to have been a non-functioning Russian satellite.

No word if we're going to see the Kessler Syndrome!

SEND UP THE TOYBOX!!!!

Addendum: Bill Harwood at Spaceflight Now. Nancy Atkinson at Universe Today (with a nifty shot of an Irdium satellite seen from the ISS).