Across
- 6. A rotating circumstellar disk of gas around a newly formed star.
- 9. A rocket like device that escapes the earth's atmosphere, which then it takes images of our solar system and makes observations.
- 10. The force exerted by anything with mass.
- 11. A spectrum of electromagnetic radiation emitted by a self-luminous source.
- 14. The galaxy that mankind resides in.
- 16. The up and down movement of the ocean's surface due to the relationship between the Earth's gravitational force, and the moon's gravitational force.
- 17. Everything that exists everywhere.
- 18. The vertical force exerted by mass because of gravity.
- 19. The theory that the universe began at one point and has been expanding and cooling ever since.
- 22. A graph that show luminosity vs. temperature of stars.
- 24. A celestial body orbiting a planet, or star, taking images to send information back to the senders.
Down
- 1. A device used to spread light into different wave lengths.
- 2. The distance light travels in a vacuum in a year.
- 3. A star the explodes and becomes luminous in the process.
- 4. The spring movement of the tide during a new moon or full moon.
- 5. A region of space which a star has collapsed.
- 7. The shift in wavelength in the electromagnetic spectrum.
- 8. A burning ball of gas that produced radiant energy and heat energy.
- 10. A group of star systems combined into one.
- 12. A device that enhances the human vision on far away objects; used to look at stars light years away.
- 13. A period of moderate tides when the sun and the moon are at right angles from each other.
- 15. A faint star of enormous density.
- 20. A nuclear reaction which nuclei come together to form a larger nucleus, which is a new property.
- 21. The path of a celestial body in its revolution.
- 23. An immense cloud of gas and dust in interstellar space.