What is the difference between a meteor, a meteorite, a meteoroid and an asteroid? It’s all about location and size. Roughly speaking, an asteroid is a relatively small body (that isn’t a ...

About once a year, an automobile-sized asteroid hits Earth's atmosphere, creates an impressive fireball, and burns up before reaching the surface. Every 2,000 years or so, a meteoroid the size of ...

A meteoroid is a small rock, measuring anywhere between a grain of sand to a boulder, that breaks off from a comet or asteroid. These become a meteor when they vaporise in the Earth’s atmosphere.

(Meteoroids are what we call meteorites when they are in space.) Video camera footage shows the 2019 mudball meteor entering the atmosphere from the west-north-west direction over Costa Rica at a ...