homeschooling 썸네일형 리스트형 •Asteroids: A Closer Look at the Asteroid Belt Introduction Asteroids are small rocky objects that orbit the sun and make up the main part of the asteroid belt—a circular orbit between the planets Mars and Jupiter. The asteroid belt is thought to be composed of the shattered pieces of a planet that collided with Jupiter long ago. It is believed that these fragments have accreted together to form the current configuration of the asteroid belt.. 더보기 이전 1 다음
