Across
- 3. a broad band of light that stretches across the night sky
- 5. A type of dying star, larger than the Sun, but smaller than the biggest stars, glowing red
- 6. A group of stars or galaxies bound by gravity, or even a bunch of grapes
- 9. a situation where multiple distinct states within a system have the exact same energy level
- 10. A spherical body that orbits a star, such as Earth, Jupiter, or Saturn
- 11. The faint glow of stars and galaxies left over from the early universe, emerging from the dark ages
- 14. This process powers stars like the Sun and creates heavier elements from lighter ones
Down
- 1. A region of space where gravity is so strong that nothing, not even light, can escape
- 2. The phenomenon that causes the light from distant galaxies to shift to longer wavelengths
- 4. A mysterious substance thought to make up a large portion of the universe's mass
- 7. A measure of astronomical distance, equal to the distance light travels in one year
- 8. A famous scientist who formulated the laws of planetary motion
- 12. A massive explosion marking the death of a star
- 13. A chemical element crucial for star formation, formed after the Big Bang