Illustration of the Kepler-51 system and its inner three planets, which have unusually low density. New observations from NASA’s James Webb Space Telescope suggest that at least one more planet

Photograph of Magnificent bird-of-paradise specimen CREDIT Image_1: inset photograph of Magnificent bird-of-paradise: Wikipedia licenses/by-sa/4.0/deed.en Image_1: photograph of Magnificent bird-of-paradise specimen: David Ocampo, personal permission — PLOS Biology Editor’s note: Having

Comet 67P/Churyumov-Gerasimenko — ESA Cometary comae are a mixture of gas and ice-covered dust. Processing on the surface and in the coma change the composition of ice on dust grains

Maximal (red) and minimal (blue) atmospheric heating factor vs instellation, for three values of the heat redistribution parameter: f = 0.2 (solid), 0.5 (dashed), and 1 (dotted). The locations of