Stone, Iron, and Nickel.
Asteroids can contain both ice and rock, and other substances. For example, Ceres, the largest object in our solar system's asteroid belt, contains 200 million cubic kilometers of water, which is more than the amount of fresh water on Earth.
Asteroids may be called minor planets in that they are like Earth or the other planets but much smaller. The idea of asteroid mining is that objects like these that are relatively close to Earth could be mined for substances that are either (a) becoming scarce here, or (b) would be useful or valuable in making journeys to more distant places. There's an article about asteroid mining on wikipedia.
The largest asteroid, Ceres, is in the asteroid belt.
a rather large asteroid
An asteroid is a single piece of rock, whereas an asteroid belt is an area that contains millions of individual asteroids.
Comets develop a tail as the sun's energy vaporizes substances such as ice and dry ice that form the comet. Asteroids lack these substances and so do not devlop tails.
Asteroids can contain both ice and rock, and other substances. For example, Ceres, the largest object in our solar system's asteroid belt, contains 200 million cubic kilometers of water, which is more than the amount of fresh water on Earth.
Asteroids may be called minor planets in that they are like Earth or the other planets but much smaller. The idea of asteroid mining is that objects like these that are relatively close to Earth could be mined for substances that are either (a) becoming scarce here, or (b) would be useful or valuable in making journeys to more distant places. There's an article about asteroid mining on wikipedia.
The largest asteroid, Ceres, is in the asteroid belt.
That's right; Ceres is the largest asteroid.
asteroid
The asteroid missed the Earth's atmosphere by inches.We will begin asteroid mining soon.
If there is an atmosphere, the light will gradually dim as the asteroid approaches the asteroid.
Main asteroid beltThe asteroid belt
The density of an asteroid differs.
Nothing
a rather large asteroid