"Habitable planets" are planets that have the necessary conditions to support life, such as having water, a suitable atmosphere, and being at a distance from their star that allows for the presence of liquid water. Full definition
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There are billions of potentially habitable planets out there, so why haven't we seen signs of life beyond the solar system? (newscientist.com)
His work could have implications for the hunt for habitable planets outside of our solar system. (sciencedaily.com)
A new estimate of the number of habitable planets orbiting the most common type of stars in our galaxy could have huge consequences for the search for life. (space.com)