Giant asteroid to pass close to Earth Tuesday.
This radar image of asteroid 2005 YU55 Monday showed it 3.6 lunar distances (860,000 miles or 1.38 million km) from Earth. STORY HIGHLIGHTS The closest approach will occur at 6:28 p.m. ET Tuesday The asteroid will pass within 202,000 miles of Earth, NASA says The space rock poses no threat of an Earth collision (CNN) -- An asteroid the size of an aircraft carrier will pass Earth to within eight-tenths of the distance of the moon Tuesday, the closest approach to Earth of an object this size in more than 30 years. The closest approach will occur at 6:28 p.m. ET when the asteroid passes within 202,000 miles of our planet, NASA said. The space agency classified the asteroid as a "potentially hazardous object." If the asteroid were to crash into Earth, it could cause a 4,000 megaton blast and a magnitude 7.0 earthquake, according to scientists at Purdue University. If it fell into the ocean, it could cause a 70-foot high tsunami within 60 miles of the crash site, the experts ...
