seth edwards space 6th

1. a group of millions or billions of stars held together by gravity
4. a wide zone of small particles that orbit a planet
8. a satellite in which people can live and work for long periods
10. the colors that make up visible light
13. a dark area of the moon
14. an object that orbits a more massive object
15. sunlight shines equally on the northern and southern hemisphere
17. a divide that gathers electromagnetic radiation
18. a spacecraft that drops into a planet's atmosphere
19. crater when an object strikes the surface of a larger object in space it explodes and leaves behind a round pit called an

1. jupiter saturn uranus and neptune
2. a craft designed to land on a planet's surface
3. occurs when molten rock moves from a planets hot interior onto its surface
5. a group of stars that form a pattern in the sky
6. small solid rocky bodies that orbit close to the sun
7. the path of an object in space as it moves around another object
9. a small icy object that is difficult to see
11. when a shadow makes the sun or moon seem to grow dark
12. particles that become very hot enough to glow producing brife strikes of light
16. a space object that reaches earths surface