What's the weather like on WASP-121b? Depends on the time of day! Scientists from @MITKavli and @TESSatMIT looked at the exoplanet's dark and saw, among other things, how water molecules are ripped apart in the sun, then reformed in the shade. @ScienceMIT https://t.co/fMST95QcVQ pic.twitter.com/T30mhpWvJa

— MIT EAPS (@eapsMIT) February 23, 2022