Across
- 3. The force stopping the stars radiation from stripping a planets atmosphere
- 6. Single-stranded
- 7. Organism capable of surviving harsh environments
- 8. Slab of Earth's rock
- 9. Technology used to discover exoplanets by using the light of stars
- 10. Composed of hydrogen & carbon; sign of life
- 11. Outside the solar system
Down
- 1. Distance from the sun where surface temperature is bearable
- 2. Region where temperature from star is not too hot nor cold
- 4. Reference for habitable planets
- 5. Created an important astrobiology equation