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October 29, 2011

Discovering the origins of Earth's Water

There has been a new discovery that might be able to explain how Earth originally obtained water. Before, there were two main beliefs. One was that comets brought water to earth since they contained a lot of it, but the article states that less than 10% could be obtained from these comets. The theory about asteroids was also another option, but asteroids didn’t contain very much water. Hartley 2 was sighted by a high powered telescope, and it showed almost an identical ratio of D/H as Earth has. This shows that it must have been a mix of asteroids and meteors, instead of just one certain place that Earth’s water came from. It is hard to tell if these results are true yet since it was only tested on one object in space.
Source: http://www.astro.lsa.umich.edu/about/news.php#cometwater

Posted by jjwdowik at October 29, 2011 03:50 PM


Wow thats crazy!

Posted by: paukenth at October 29, 2011 07:44 PM

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