Across
- 3. A region of spacetime where gravity is so strong that nothing can escape.
- 6. The apparent increase in wavelength of light emitted from distant galaxies and stars, due to the expansion of the universe
- 9. Black body radiation released outside the event horizon of a black hole
- 10. planet in the solar system famous for its rings of ice and dust
- 11. Thought to account for 85% of the substance of the universe.
Down
- 1. A powerful and luminous explosion of a red supergiant.
- 2. A giant cloud of gas and cosmic dust.
- 4. one of the most extreme environments in the universe; its density can be approximated as the mass of all humans on earth inside one sugar cube.
- 5. an extremely small scale, high density, high pressure explosion that kickstarted the ongoing expansion of the universe
- 7. The largest moon in our solar system.
- 8. Our galaxy