asteroidnoun [ C ]uk /ˈæs.tər.ɔɪd/ us /ˈæs.tə.rɔɪd/
- A one-kilometer wide asteroid could hold hundreds of billions of dollars worth of these minerals.
- And on the asteroid Eros, there is more silver, gold, and aluminum than could ever be dug from the earth.
- Asteroids contain minerals, such as nickel, cobalt, and even platinum.
- The Outer Space Treaty covers the Moon, asteroids, and everything else in outer space.
- They want to mine asteroids.
- Thousands of asteroids pass near Earth every year, and scientists believe those asteroids could be very valuable.
- To mine an asteroid, you must take everything you need with you into space: equipment, people, food, and water.