Whoa! Sun-Watching Spacecraft Finds 3,000th Comet

A spacecraft that launched in 1995 to study the sun has discovered its 3,000th comet, further bolstering its credentials as history's greatest comet hunter. The Solar and Heliospheric Observatory (SOHO), a joint effort of NASA and the European Space Agency (ESA), spotted comet number 3,000 on Sunday (Sept. 13). The landmark discovery was pulled out of SOHO's database by Worachate Boonplod of Thailand, NASA officials said.