Cosmic Dust
The Infinite Monkey Cage
00:00
The Origins of the Earth's Oceans
For the inner regions of the solar system, you had the sun that was heating up materials and it was making it impossible for things like water to condense. As you go further out, you have other volatiles that are able to condense out, things like carbon dioxide. And actually water has been a bit of a problem because we've been looking embarrassingly. We'd expect it to be like coming from asteroids or coming from comets - so it should be easy to find. So far we've found nothing. It's funny how often that works.
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