Glossary

Meteoroid - Definition

updated: 2026-07-18

A meteoroid is a rocky or metallic object in space with a diameter of less than 1 meter (3.28 feet). Very tiny meteoroids — with mass smaller than 1 gram or so — are often called micrometeoroids or space dust.

Other free floating objects in our Solar system:

Reference: Asteroids vs comets vs… | The Planetary Society

Created with the Personal Edition of HelpNDoc: Effortlessly Support Your Windows Applications with HelpNDoc's CHM Generation