The Fourth of July fireworks started early. Scientists wearing red-and-blue shirts jumped up and down at the Jet Propulsion Laboratory here in California, upon receiving word from 83 million miles away that a comet had smashed into a NASA probe. The...
VOA,VOA标准英语,Washington,NASA,capsule,By David McAlary Washington 15 January 2006 Tom Duxbury, Stardust Project Manager for NASA's Jet Propulsion Lab, answers questions during a news conference after the landing of the Stardust capsule A...
66 神秘的彗星"里尼尔" DATE=7-4-01 TITLE=SCIENCE REPORT - Comet LINEAR BYLINE=Caty Weaver (Start at 59")his is Bill White with the VOA Special English Science Report. A space object of (1) froz...
