The NASA/ESA Hubble Space Telescope captured the dramatic effects of the collision early July 4 between a 370-kilogram projectile released by the Deep Impact spacecraft and comet 9P/Tempel 1. This ...

Here come the X-rays, on cue. Scientists studying the Deep Impact collision using NASA’s Swift satellite report that comet Tempel 1 is getting brighter and brighter in X-ray light with each passing ...