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arroba
From Fox News, we learn,
Astronomers discovered a solar system packed with planets three of which are habitable — meaning in the zone around the star where liquid water could exist, making them possible candidates for the presence of life.
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The Gliese 667C solar system is strikingly similar to ours and the three planets identified as habitable are confirmed to be super-Earths: planets that have more mass than Earth but less mass than larger planets like Uranus and Neptune
If the only requirement for “habitable” is a place where liquid water could exist, lots of icy comets would be habitable, wouldn’t they?
A good deal more than that goes into making Earth habitable.
Meanwhile, an article in New Scientist earlier this year informed us that Earth’s habitability rating had “taken a hit.” What? Earth’s habitability has a probability of 1, and it is hard for such a rating to “take a hit” unless all life is suddenly wiped out here.
It would be nice to find truly habitable planets or life on other planets, but we can’t conjure it.