Topic
Small Solar System bodies
2 questions tagged Small Solar System bodies — spanning every one of the seven Ws.
what
What is a meteoroid?
A meteoroid is a small rocky or metallic object moving through space. If it enters Earth’s atmosphere, it becomes a meteor; if it reaches the ground, it is a meteorite.
AstronomySmall Solar System bodies
how
How do astronomers tell the difference between a comet and an asteroid?
They look at composition and behavior: comets contain lots of ice and can grow a coma and tail near the Sun, while asteroids are usually rockier and do not. Some bodies blur the line and show mixed features.
AstronomySmall Solar System bodies