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Pluto's Weird Atmosphere Just Collapsed

21 May 2020, 19:00 UTC
Pluto's Weird Atmosphere Just Collapsed ESO/L. Calçada

Pluto’s atmosphere is hard to observe from Earth. It can only be studied when Pluto passes in front of a distant star, allowing astronomers to see the effect the atmosphere has on starlight. When this happened in 2016, it confirmed that Pluto’s atmosphere was growing, a trend that astronomers had observed since 1988, when they noticed it for the first time.

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