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Space Science

Nearby, Recent Interplanetary Collision Inferred 88

The Bad Astronomer writes about a new discovery by the Spitzer Space Telescope, which detected signs of an interplanetary smashup only 100 light-years from here, and only a few thousand years ago. There's a NASA-produced animation of the collision between a Mercury-sized planet and a moon-sized impactor. The collision's aftermath was detected by the presence of what are essentially glass shards in orbit around the star. Here's NASA's writeup.
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Nearby, Recent Interplanetary Collision Inferred

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It is contrary to reasoning to say that there is a vacuum or space in which there is absolutely nothing. -- Descartes

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