Thin, insulating layer may prevent Pluto's underground ocean from fre - Astronomy Magazine

1. Thin, insulating layer may prevent Pluto's underground ocean from fre  Astronomy Magazine
2. Scientists Think They Know How Pluto's Hidden Ocean Stays Liquid  Gizmodo
3. What keeps Pluto's ocean from freezing?  CNN
4. Pluto may have a subsurface ocean thanks to layer of gas insulation  New Atlas
5. A thin layer of gassy material on Pluto may be keeping an underground ocean from freezing solid  Daily Mail
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