Biology, 16.11.2019 16:31 joha222680

Is being in a "habitable zone" enough to say the planet is habitable for human life? what characteristics would an earth-like planet need to have to support life? what challenges would we face traveling to and colonizing kepler-186f, or other earth-like planets outside of our solar system? do you think scientists should spend time looking for earth-like planets before we have the technology to visit them? why or why not?

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Is being in a "habitable zone" enough to say the planet is habitable for human life? what character...