Across
- 1. huge explosion that destroys a dying star
- 3. a sphere of carbon that is hot and is slowly cooling
- 5. the process that two nuclei combine into a larger one
- 6. something in orbit around an object collecting information
- 10. the tides after a new or full moon
- 11. an object with gravity so immense that not even light can escape
- 15. the path of an object that moves around another object
- 17. the gravity being put on an object
- 18. something sent into space unmanned to collect and send info
- 19. tide after the first three quarters of the moon
- 23. the invisible attractive force between objects
- 25. dust that surrounds the core of a developing solar system
Down
- 2. a part of the electromagnetic spectrum emitted by a source
- 4. a big hot sphere of hydrogen that is held together by gravity and uses nuclear fusion at it's core
- 7. a unit of measurement that takes 1 year for light to travel
- 8. a instrument that examines spectra
- 9. an scientific instrument that can see the stars in a better way with mirrors and lens
- 11. the theory in which the universe was started by an explosion of dust
- 12. electromagnetic wavelengths shifting
- 13. huge cloud of dust and matter
- 14. the galaxy we live in
- 16. the content of matter and time that we l
- 20. clump of stars, planets, and dust that we live in
- 21. the rise and fall of the oceans waves because of the gravity of the moon
- 22. a diagram that can predict the luminosity and temperature of a star
- 24. how dense all objects with weight have