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lucia lucia

16 Ian 2008 09:31



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Pana la urma... om trai si-om vedea.

Au fost destul de multe cazuri in ultimul timp de asteroizi descoperiti dupa ce au trecut aproape de Pamant 
Trec pe langa noi si noi ne vedem de viata, linistiti... :shock: 
On 19 May 1996 a 300–500-m asteroid, 1997 JA1, passed within 450,000 km of Earth; it had been detected a few days before.

On 18 March 2004 a 30-m asteroid, 2004 FH, passed within 40,000 km of Earth only a few days after it had been detected. This asteroid probably would have detonated in the atmosphere and posed negligible hazard to the surface, had it been on impact course.

On 31 March 2004, a 6m meteoroid, 2004 FU162 made the closest near miss pass ever observed with a separation of only 1.02 Earth radii from the surface (6,500 km). Because this object is certainly too small to pass through the atmosphere, it is classed as a meteoroid rather than an asteroid.

In 2004, a newly discovered 320-m asteroid, 99942 Apophis (previously called 2004 MN4), achieved the highest impact probability of any potentially dangerous object.

(http://en.wikipedia.org/wiki/Impact_event)