A spacecraft delivers rare samples of extraterrestrial dust to Earth. Now scientists need your help to study it
By Dawn StoverPosted 03.14.2006 at 2:00 am 0 Comments
"We believe we have the Holy Grail," says Don Brownlee, the lead scientist for NASA's Stardust mission, in which a robotic spacecraft traveled nearly three billion miles to capture interstellar dust and comet particles and then flew back to Earth in a seven-year round-trip voyage. The touch-down this January in the Utah desert marked the first successful return of extraterrestrial material since 1976, when an unmanned Soviet probe last brought home moon rocks.