Monday, March 15, 2021

Potentially habitable exoplanets, ranked from best to worst by the Earth Similarity Index (ESI), which is a measure of Earth-likeness based on stellar flux and planet size. Mars, Jupiter, Earth, and Neptune are shown for scale. [1920 x 1080] (Image credit: PHL/UPR Arecibo)


https://bit.ly/3eUen7l via /r/spaceporn https://bit.ly/3qSIqhM

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