Famously Hot Exoplanet's Upper Atmosphere Is Strangely Cold | Video

One of the first exoplanets to be discovered, Tau Boötis b, has revealed a chilly shell 'hot Jupiter' type atmosphere. Europe's Very Large Telescope (VLT) caught the scene, here also embellished as an artist's impression.
credit : ESO/L. Calçada / Mash Mix: SPACE.com
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