Cosmic dust

Cosmic dust is tiny pieces of material that exists in outer space. It is made up of things like gas, rocks, and ice. It is so small that you can’t see it with your eyes, but it is everywhere in space! Some of it comes from other planets, stars, and galaxies. Most of it is made up of bits of rock and ice that have been broken up by collisions between these large objects. Cosmic dust helps scientists learn about our universe!