Micrometeoroid
Meteoroid with a mass of less than one gram / From Wikipedia, the free encyclopedia
A micrometeoroid is a tiny meteoroid: a small particle of rock in space, usually weighing less than a gram. A micrometeorite is such a particle that survives passage through Earth's atmosphere and reaches Earth's surface.
![Thumb image](http://upload.wikimedia.org/wikipedia/commons/thumb/f/fc/Micrometeorite.jpg/250px-Micrometeorite.jpg)
The term "micrometeoroid" was officially deprecated by the IAU in 2017, as redundant to meteoroid.[1]