The Sikhote-Alin meteorite is a famous witnessed fall that landed in Russia at 10:38 am on February 12, 1947. That morning an estimated 70-ton mass blasted through Earth’s warm atmosphere at speeds of 25,000 mph or more. During its flight, experts estimate the surface of the Sikhote-Alin meteorite reached at least 3,000 degrees Fahrenheit. As the mass hurtled closer to our planet’s crust, the pressure of ever-denser air forced it to shear and fracture along its crystalline planes, causing a monumental aerial explosion that was heard by human observers on the ground. The shockwave reportedly knocked over forest workers as twisted shards of metal rained down among snowy pines.