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Canadian NIRISS instrument on Webb Maps an Ultra-Hot Jupiter’s Atmosphere
There’s an intriguing exoplanet out there – 400 light-years out there – that is so tantalising that astronomers have been studying it since its discovery in 2009. One orbit for WASP-18 b around its star that…
A likely volcano-covered terrestrial world outside the Solar System
LP 791-18 d, illustrated here, is an Earth-size world about 86 light-years away. The gravitational tug from a more massive planet in the system, shown as a blue dot in the background, may result in internal heating and…