EXOPLANETS

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Across
  1. 3. _________________ means humans are able to live there because there is liquid water
  2. 6. ________ are the slight dimming of light from a star when its tiny planet passes between it and our telescopes
  3. 7. ______________ imaging is when the scientist sees a planet through a telescope
  4. 8. The worlds ________________ other stars are called “exoplanets”
  5. 9. Most planets that we can see with direct imaging are gas _________
Down
  1. 1. this word means less visible
  2. 2. planets need the correct type of ___________ to support liquid water
  3. 4. ____________ Centauri b - the closest exoplanet - is about four light-years away
  4. 5. exoplanets are difficult to see mainly because they don't produce their own __________
  5. 10. most exoplanets are found using ___________ imaging which means scientists measure the dimming light of a planet's star as the planet passes in front of it