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Old 02-18-2013, 08:58 PM   #26
Fire Haley

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Default Re: Meteorite blows up over Siberia

'Fireball' lights up Florida sky

MIAMI - A fireball lit up the Florida sky Sunday evening.

People from as far south as Key West and as far north as Jacksonville reported seeing the flash of light.

Clear skies Sunday made it easy for people to see the fireball, which was essentially a very bright meteor.


Russian 'meteor' was actually a tiny asteroid, NASA says

At a news conference Friday, NASA scientists said the object that exploded over Russia was a “tiny asteroid” that measured roughly 45 feet across, weighed about 10,000 tons and traveled about 40,000 mph.

The object vaporized roughly 15 miles above the surface of the Earth, causing a shock wave that triggered the global network of listening devices that was established to detect nuclear test explosions.

The force of the explosion measured between 300 and 500 kilotons, equivalent to a modern nuclear bomb, according to Bill Cooke, head of the Meteoroid Environment Office at NASA's Marshall Space Flight Center in Huntsville, Ala.

Asteroids are tracked by telescope, as they are too far away to be detected by radar. Because of this, they are observable only when illuminated by the sun against a dark background. If they are small and dark-colored, they are far more difficult to observe.

In the case of the Russian asteroid, it approached Earth with the sun behind it.,5424522.story


Blinded by the light..........
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