The temperature on the nightsides of short-period gas giants (hot Jupiters) is surprisingly uniform, suggesting the dark sides of these exoplanets have clouds made of minerals, a study published in the journal Nature Astronomy has found. An artist’s impression of a hot-Jupiter exoplanet. Image credit: C. Carreau / ESA. Hot Jupiters circle very close to their host star — so close that it typically takes fewer than three days to complete an...
