Across
- 4. A long-tailed meteor streaks horizontally
- 5. The twinkling of stars, caused by atmospheric turbulence distorting the light
- 6. A massive system of millions or billions of stars, together with gas and dust, held together by gravitational attraction
- 8. A meteor that glows brighter than a planet
- 11. A recognized group of stars forming a prominent pattern
- 13. The rare remnant of space rock that survives the intense heat of entry and actually lands on Earth's surface
- 14. The colossal, luminous explosion of a dying star
- 16. The cloud of dust, ice, and rock left behind by a comet or asteroid
- 18. The bright streak of light caused by a meteoroid burning up as it plunges into the atmosphere
- 19. The practice of observing the night sky
Down
- 1. Relating to a star or stars
- 2. Relating to the sky or outer space
- 3. The common name for a meteor
- 7. An immense cloud of gas and dust in outer space
- 9. The timeframe when a meteor shower reaches its highest activity level
- 10. The universe seen as a well-ordered whole
- 12. The lingering ionized gas and dust left behind in the sky after a meteor streaks past
- 14. Microscopic particles of rock, ice, metal, and organic compounds left over from asteroids, comets, and dying stars
- 15. The specific point in the sky which the meteor appears to originate
- 17. Icy, small solar system bodies that heat up when passing close to the Sun
