Planetary Defense

The recovered stones from the 2013 Chelyabinsk airburst, an ordinary chondrite whose spectacular entry — filmed by countless dashcams — was the most damaging meteor event in modern history.

A powerful bolide that exploded over the Bering Sea in December 2018 with roughly ten times the energy of the Hiroshima bomb — the largest airburst since Chelyabinsk, unnoticed at the time because it occurred over the remote ocean.

A brilliant green fireball that crossed the eastern United States in October 1992, filmed by at least 16 people, before a fragment struck a parked car in Peekskill, New York — one of the best-documented fireball-to-meteorite events.