When we imagine planets, we usually picture them circling a fiery star like our Sun. But new evidence has now been found of a type of planetary system that instead forms around cold planets that float

GLOBAL EYE

Might our universe – as vast as it is – be simply one of many? We look at the growing evidence that there’s more than one cosmos out there

One of the most important features of extrasolar planets is whether they have an atmosphere or not. For astrobiology in particular, small, rocky planets blanketed with an atmosphere offer the best hop

While our planet only has one easily visible Moon, several other tiny objects arguably deserve the title too

1. The Hyades The V-shaped Hyades open star cluster is next to mag. +1.0 Aldebaran (Alpha (α) Tauri), the reddish eye of the Bull, a foreground star that’s not actually part of the cluster. At 153 lig