August 02, 2004

The Story of a Rock

I don't know what's harder to believe — that these things make their way here (and somebody actually finds them), or that we're able to figure out so much about precisely where they came from.

The rock left the Moon no more than 340,000 years ago, carved out of the Imbrium Basin -- the right eye of the "Man in the Moon" -- by an asteroid impact. Lured by gravity, the fist-sized object arrived on Earth sometime within the past 9,700 years.

Gnos even thinks he might know the exact crater on the Moon from whence the rock came.

Reading this, I can't help but ponder the fact that that the planet we're on has also had it's share of meteor impacts over the years, including one that led to the end of the dinosaurs. What did we shoot out into space with those impacts? Just rocks? Is it possible that there are portions of tree trunks, dinosaur bones — maybe even a T. Rex carcass? — in orbit around the sun, just waiting for an eventual near encounter with one of the planets?

It's fun to consider.

Posted by Phil at August 2, 2004 08:26 AM | TrackBack
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