Alan see:
http://antwrp.gsfc.nasa.gov/apod/ap091002.html
"These colorful panels both feature a familiar astronomical sight: the stellar nursery known as the
Great Orion Nebula. They also offer an intriguing and unfamiliar detail of the
nebula rich skyscape -- a passing comet. Recorded this weekend with a remotely operated telescope in New Mexico, the right hand image was taken on
September 26 and the left on
September 27"