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Questions and Answers
How many extrasolar planets have been found using ground-based telescopes?
How many extrasolar planets have been found using ground-based telescopes?
- Less than 100
- Approximately 1000
- Over 500 (correct)
- None of the above
What is the approximate percentage of stars that could have a habitable planet according to Kepler's findings?
What is the approximate percentage of stars that could have a habitable planet according to Kepler's findings?
- 3% (correct)
- 5%
- 10%
- 1%
What has SETI Institute searched for on the habitable worlds within a thousand light years of Earth?
What has SETI Institute searched for on the habitable worlds within a thousand light years of Earth?
- Intelligent beings
- Signs of life
- Extraterrestrial transmissions (correct)
- None of the above
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Study Notes
- Over 500 extrasolar planets have been found using ground-based telescopes
- Kepler telescope can find multiple planets and small planets at the same time
- Kepler has found approximately 3% of stars could have a habitable planet
- There are at least 30,000 habitable worlds within a thousand light years of Earth
- SETI Institute has searched for extraterrestrial transmissions on these worlds
- No clearly extraterrestrial transmissions have been found yet
- Kepler will continue to search for more Earth-like planets
- These planets will be observed for signs of intelligence
- There is a possibility of life on these habitable worlds
- Kepler's discoveries suggest a big number of habitable worlds.
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