Across
- 3. Coldest possible temperature (_ zero)
- 8. Winner of two Nobel prizes, one in physics and one in chemistry
- 9. May be dead or alive
- 10. Had fruitful thoughts
- 15. Consequence of falling into a black hole
Down
- 1. Causes planets to tear apart (_ limit)
- 2. Types include alpha, beta, gamma
- 4. Number of moons belonging to *Jupiter, in Roman numerals
- 5. Particle that travels backwards in time
- 6. Largest planet in the solar system
- 7. Third time derivative of position
- 11. "Spooky action at a distance"
- 12. Acronym for an American space program
- 13. Quark that makes up 2/3 of a proton
- 14. equal to 3, so say engineers