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SCIENCE
KILLER ASTEROID -- NEAR MISS
A 30-50 meter-wide asteroid just passed seven times closer to us than the moon, glowing so bright you could see it through a cloud. If it had hit the ocean, it would have tsunamied.
MORE: http://i.gizmodo.com/5163926/we-almost-got-asteroided-last-night
As I'm writing this (13:40 UT) a newly-discovered asteroid, 2009 DD45, is flying past Earth at only 74,800 km (46,478.5 miles or 0.000482 AU) away. That's only about twice the height of a typical geostationary communications satellite, and well inside the moon's orbit. According to Spaceweather.com, the 30- to 40-meter wide space rock is similar in size to the Tunguska impactor of 1908, but this time there is no danger of a collision. At closest approach on March 2nd, (which just occurred) 2009 DD45 will speed through the constellation Virgo shining as brightly as an 11th magnitude star. So if you're in the Pacific region like Hawaii or Tahiti, go out and take a look! But this rock is moving fairly fast, and by tonight, it will only be 13th magnitude, and fading fast.
MORE: http://www.universetoday.com/2009/03/02/asteroid-2009-dd45-just-buzzed-by-earth/
Surprise Asteroid Makes Near-Miss of Earth
Monday, March 02, 2009 
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Wait! Did you hear that whooshing sound?
A small asteroid buzzed by Earth Monday, though only real astronomy geeks in the Pacific would have noticed.
The rock, estimated to be no more than 200 feet wide, zoomed past our planet at an altitude of 40,000 miles at 1:44 p.m. universal time — or 8:44 EST.
Dubbed 2009 DD45, it was discovered only on Friday by Australian astronomers.
Forty thousand miles may sound like a lot, but it's only about one-seventh of the way to the moon, and less than twice as far out as many telecommunications satellites.
Had 2009 DD45 hit the Earth, it would have exploded on or near the surface with the force of a large nuclear blast — not very reassuring when you consider humanity had only about three days' notice.
According to the Australian news Web site Crikey, the asteroid is likely to be drawn in by Earth's gravity, meaning it may return for many more near misses in the future.
MORE: http://www.foxnews.com/story/0,2933,503164,00.html
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