Earth sweeps up 5,200 tons of extraterrestrial dust each year
Those micrometeorites come from both comets and asteroids
![5 micrometeorites found in Antarctica](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2021/04/041321_sp_space-dust_feat.jpg?fit=1030%2C580&ssl=1)
Five micrometeorites (pictured) found during excavations in Antarctica are just a smidge of the roughly 5,200 metric tons of space dust that fall to Earth each year.
Left two and right: J. Duprat and C. Engrand/CNRS; Middle two: C. Engrand and L. Delauche/CNRS