Some exoplanets, planets outside our own solar system, do not rotate on their own axis when they orbit their star. As a result, one side is always facing the sun, while the other is shrouded in permanent night. But in between, in the so-called twilight zone, extraterrestrial life might still emerge, according to a study published in March in The Astronomical Journal.
Exoplanets that do not rotate on their own axis are remarkable. They are located
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