Across
- 2. A citizen scientist helped discover me. Who am I?
- 5. I have no Sun, no home—just endless wandering. Who am I?
- 6. I'm two giant balloons floating above and below the Milky Way. Who am I?
- 8. I'm a giant cloud where baby stars are being born. Who am I?
- 10. I'm the giant black hole hiding at the heart of our galaxy. Who am I?
- 11. I'm not too hot, not too cold—just right for liquid water. What am I?
- 12. I spin like a cosmic lighthouse, flashing over and over again. Who am I?
Down
- 1. I'm colder than almost anywhere else in the universe. Who am I?
- 3. I look like the head of a horse, but I'm made of gas and dust. Who am I?
- 4. I don't have a mouth, but I
- 7. I'm three towering columns hiding baby stars inside. Who am I?
- 9. I was born after a giant star exploded, and I'm one of the densest objects in the universe. Who am I?