By Sarah Zhang

When volcanoes erupt, magma usually comes pouring out of fissures—deep, narrow crevices that plunge into the Earth. But fissures are difficult for clumsy humans to explore, even when the volcano is inactive. Enter …

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Source:: http://feeds.gawker.com/~r/gizmodo/full/~3/bHEJYKJnFjQ/nasa-is-sending-this-little-bot-to-explore-inside-a-vol-1678019582