Across
- 2. Boundary of no return around a black hole
- 3. Most powerful explosions in the universe
- 5. Stretching effect near black holes
- 6. Gas and dust between stars
- 13. Faint glow left from the Big Bang
- 14. Ultra-dense corpse of an exploded star
- 15. Superbright galactic core powered by a black hole
- 16. Explosive birth of the universe 13.8 billion years ago
- 17. Invisible cosmic glue holding galaxies together
- 19. Spinning neutron star that beams radiation like a lighthouse
- 20. Infinitely dense point at a black hole's core
- 21. Quantum particles leaking from black holes
- 23. Distance light travels in one Earth year
- 24. Famous star-forming cloud visible to the naked eye
Down
- 1. Faster-than-light expansion after the Big Bang
- 4. Mysterious force accelerating universal expansion
- 5. Violent death explosion of a massive star
- 7. Region where nothing escapes, not even light
- 8. Stellar nursery of gas and dust in space
- 9. Icy shell at our solar system's edge
- 10. Stretched light revealing cosmic distances
- 11. Superheated spiral of doomed matter around black holes
- 12. Neutron star with an ultra-powerful magnetic field
- 18. World orbiting a distant sun
- 22. Earth-sized remnant of a sun-like star