The schoolbus-sized meteor that exploded over the Russian city of Chelyabinsk in February left a lot of things in its wake: more than 1,000 injured people and more than $33 million in damage. The meteor also left behind another telltale sign of its passing -- a dusty layer in the stratosphere persisting for months, which scientists now say they’ve been able to track with satellites.
The Chelyabinsk meteor rocketed down from space, reaching the blisteringly fast speed of 41,600 miles per hour before exploding 14.5 miles above the city. The meteor’s fiery death released an energy equivalent to more than 30 times the power of the atomic bomb that destroyed Hiroshima. While some pieces of the meteor fell to Earth, they weren't directly responsible for injuries or damage. Virtually all of the injuries recorded from the meteor weren't from the rock itself, but from secondary effects like broken windows. Much of the obliterated meteor dispersed into the sky as dust.