Fossilized Clams Had Evidence of a Meteorite Impact Inside Them

Some of the microtektites found by Mike Meyer inside fossilized clams in Florida. Image Credit: Photo by Meyer et al in Meteoritics and Planetary Science.

When an extraterrestrial object slams into the Earth, it sends molten rock high into the atmosphere. That debris cools and re-crystallizes and falls back down to Earth. Tiny glass beads that form in this process are called microtektites, and researchers in Florida have found microtektites inside fossilized clams.

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