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Some exoplanets are so close to their stars that they're tidally locked, meaning the same side, called the dayside, gets every bit of light. Sound familiar? Happy #MothersDay!
#NASAExoplanets
in reply to NASA

"The City in the Middle of the Night" by Charlie Jane Anders is one of my favorite SF books, and it takes place on the narrow habitable ring of a tidally locked planet between the hot side (day) and the frozen side (night).

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