hidden

Space & Cosmos

Exoplanets may have hidden atmospheres

Diagram of the tidally locked planet TRAPPIST-1f. Courtesy of NASA/JPL-Caltech Most of the exoplanets we’ve discovered orbit red dwarf stars. This isn’t because red dwarfs are special, but simply because they’re common. About 75% of the stars in the Milky Way are red dwarfs, so they’re likely to be the most abundant. This also means that most habitable worlds orbit…