Unit 1 - OD4

a mass of ice and dust that moves around the Sun and looks like a bright star with a tail

a piece of rock from space that hits the Earth’s surface

any of the many small, rocky bodies that go around the Sun

a building where scientists can watch the stars, the weather, etc., using special instruments

You look through it to make things that are far away appear bigger.

the round object that shines at night by light from the sun