PDA

View Full Version : Asteroid Risk Lowered



Fraser
2005-Sep-23, 07:29 AM
SUMMARY: When Asteroid 2003 QQ47 was discovered last week from a tracking system in New Mexico, astronomers predicted that it could strike the Earth in 2014. Astronomers have now made 51 observations of its orbit and determined that the chance of it hitting the Earth are 1 in 909,000 and additional observations will probably reduce this possibility to zero. The space rock is estimated to be 1.2 km across and traveling at a speed of 30 km/second. If it did strike the Earth, it would cause widespread destruction across an entire continent, releasing the same amount of energy as 350 billion tonnes of TNT.

View full article (http://www.universetoday.com/am/publish/article_596.html)
What do you think about this story? post your comments below.