When a space body enters Earth’s atmosphere, its surface is exposed to high pressure and temperatures. The airflow tears off small droplets from the...
An object that exploded over Chelyabinsk, Russia in February 2013 initially measured 20-m across and was about 4,452 million years old, according to three...
According to a team of Russian scientists reporting today at the Goldschmidt conference in Italy, the Chelyabinsk meteorite either collided with another...
