Across
- 2. A galaxy-sized cloud of dust and gas; CRAB -----
- 4. Forms when a large collapses, no escaping it
- 6. The red plant-has evidence of river beds
- 7. Our Galaxy
- 8. Has a stormy surface with 1200 mph winds
- 9. Third rock from the sun
- 10. The planet closest to the sun
- 11. Group of stars connected to form an image
- 15. Cold, barren planet named for the Greek sky god
- 17. This comet orbits the sun every 76 years
- 19. Biggest planet by far
- 22. Streaking object composed of ice and gas
- 24. Nearest neighboring galaxy-2.2mil Light years away
- 25. A galaxy is composed of millions of -----
- 26. Force that attracts two masses to each other
Down
- 1. Planet surrounded by rings of icy rock and gas
- 3. Shape of the Earth's orbit
- 5. The explosion of a large star
- 6. A shooting star
- 12. The dog star- the brightest star visible from Earth
- 13. How distance is measured in space
- 14. Chunks of rock, mainly between MARS and Jupiter
- 16. Smallest darkest planet found in 1930
- 18. One theory of how the universe was created
- 20. The smallest piece of a chemical element
- 21. Spinning clouds of stars ,dust and gas
- 23. A planet's natural satellites, like lo and Europa
- 27. Hot,dense, and acidic plant closet to Earth