Year of the Comet
Comet C/2011 L4 (PANSTARRS)

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Comet C/2012 S1 (ISON)

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Web Extras

Meteorites and meteorwrongs

How can you tell a real meteorite from ordinary rocks?
By Daniel Pendick
Published: September 22, 2008
Have you ever found a really weird rock and wondered if it had fallen from space? In some cases, special laboratory tests may be required to make a definite meteorite identification. Here's how to make the first cut.
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