Across
- 2. Planet that rotates on its side
- 4. The displacement of spectra of objects moving away from us
- 8. Where a star is born
- 10. Astrophotographer's camera type
- 11. Study of the universe's origin and evolution
- 12. Icy visitors with glowing tails
- 14. Spin on one's axis
- 15. Frontier of the Curiosity rover
- 17. Explosive stellar endings
- 20. Orbit around a central body
- 22. ___ craters are left by meteorites
- 24. Measure of an orbit's deviation from circular
- 26. Third rock from the Sun
- 27. Type of extremely dense star remnant
Down
- 1. The fastest planet in our solar system
- 3. Instrument that analyzes starlight by wavelength
- 5. ___'s law relates galaxy distance to recession velocity
- 6. Our closest galactic neighbor
- 7. A rock traveling through the atmosphere
- 9. Type of universe that will expand forever
- 13. Solstice with the longest day of the year
- 16. Ring ring ring!
- 18. Planet named for the Roman god of the sea
- 19. Home to the Great Red Spot
- 21. The kind of star our Sun will eventually become
- 23. Where the days are longer than the years
- 25. Shape of an orbit