First discovered in 2009, GJ 1214 b is described by the JWT team as being “sub-Neptune-sized” - smaller than the outermost ...
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Astronomers thought mini-Neptunes had atmospheres with water or hydrogen. This one has neitherGJ 1214b is a strange planet. It has a radius about 2.7 times that of Earth and a mass roughly eight times greater. It’s ...
NASA’s James Webb Telescope uncovers GJ 1214 b, a super-Venus exoplanet with a carbon dioxide-heavy atmosphere, challenging ...
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