by Tiny dust particles far outweigh larger, flashier meteorites that hit the planet.
Every year, 5,200 tons of extraterrestrial dust fall to Earth.
This gentle rain of bits of comets and asteroids far outweighs larger meteorites that hit the planet, according to research to be published April 15 in the journal Earth & Planetary Science Letters.
Only about 10 tons (9 metric tons) of larger space rocks land on Earth annually.
Source
Every year, 5,200 tons of extraterrestrial dust fall to Earth.
This gentle rain of bits of comets and asteroids far outweighs larger meteorites that hit the planet, according to research to be published April 15 in the journal Earth & Planetary Science Letters.
Only about 10 tons (9 metric tons) of larger space rocks land on Earth annually.
Source
