Asteroid 1994 XD, which was discovered by the Spacewatch group at Kitt Peak Observatory in Arizona in 1994, will come as close as 19.2 million miles to.
This 25-year-old sci-fi disaster movie is still lauded by scientists — here s why salon.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from salon.com Daily Mail and Mail on Sunday newspapers.