as
te
roid
Plural
asteroids
1
any of the rocky bodies orbiting the sun, ranging greatly in diameter, also found in large numbers between Jupiter and Mars
- Scientists study asteroids to learn about the early solar system and potential threats to Earth.
- Asteroids vary in size from tiny fragments to large bodies hundreds of kilometers across.
- The asteroid impact that led to the extinction of the dinosaurs occurred approximately 66 million years ago.
- NASA's mission to study the asteroid Bennu aims to gather data that could help protect Earth from future asteroid impacts.
- Some asteroids contain valuable minerals and resources that could be mined in the future.