geology

Volcanic lightning zaps ash into glass

By April Gocha / March 9, 2015

New research from an international team of scientists suggests that natural glass spheres are born during another natural phenomenon—volcanic lightning.

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Impact glass may offer glimpse into ancient life on Mars

By April Gocha / May 6, 2014

Scientists studying ancient meteorite impacts have now found that impact glass can preserve bits of organic matter, acting like a tiny time capsule that provides a snapshot of the environment at the time the meteorite struck and may be able to decipher if life ever existed on Mars.

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