Cách sử dụng
An asteroid is a type of rock that is found in space, orbiting around the sun. They are different from planets because they are much smaller and do not have their own orbit. Sometimes asteroids can come close to Earth, and some scientists worry that they could collide with our planet and cause damage. The word 'asteroid' can be used in conversations or texts that are related to space, astronomy, or science. For example, "NASA scientists discovered a new asteroid that could pass close to Earth in the next few years."