Tag Archives: why our solar system has only 1 habitable planet

Surprising number of exoplanets could host life Space

Concept of artist of habitable zones – zones in which liquid water can exist – in our solar system as opposed to the Trappist-1 system, about 40 light-years away. The Trappist-1 system has 3 planets in its habitable zone (the green area). Our solar system has just 1, our Earth. …

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