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Fraser
2005-Sep-24, 10:09 AM
SUMMARY: At a NASA-sponsored conference, a group of experts have estimated that the Earth is struck once every 1,000 years by an asteroid capable of releasing 10-megatons of energy - not a planet killer, but definitely enough to cause a terrible loss of life. NASA and the astronomical community has been systematically searching for all Near Earth Objects larger than 1 km across, and capable of crossing the Earth's orbit. So far they've found 600 out of an estimated 1,000.

View full article (http://www.universetoday.com/am/publish/article_208.html)
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fossilnut2
2005-Sep-24, 03:47 PM
SUMMARY: At a NASA-sponsored conference, a group of experts have estimated that the Earth is struck once every 1,000 years by an asteroid capable of releasing 10-megatons of energy - not a planet killer, but definitely enough to cause a terrible loss of life.
View full article (http://www.universetoday.com/am/publish/article_208.html)
What do you think about this story? post your comments below.

Not a planet killer? What a ridiculous phrase for them to bring into the equation. a 10 megatons of energy would have less impact being a 'planet killer' than if someone took a BB gun and randomly shot a BB into a footbal stadium of 100,000 people and then said 'it could have a devastating impact but won't kill everybody'.