Examples from literature

• 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.