Across
- 1. the star around which the planets revolve, from which they receive heat and light.
- 3. small galaxies composed of a few billion stars.
- 6. any of the large bodies that revolve around the Sun in the solar system.
- 7. a rock that falls to Earth from space.
- 8. small, rocky objects that orbit the Sun.
Down
- 1. a group of planets and other bodies that revolve around a star.
- 2. a place in space where gravity pulls so much that even light can not get out.
- 4. an enormous cloud of dust and gas occupying the space between stars and acting as a nursery for new stars.
- 5. it happens when the Moon passes between the Sun and Earth, casting a shadow on Earth that either fully or partially blocks the Sun's light in some areas.
- 7. the large round object that circles the Earth and that shines at night by reflecting light from the sun.