TRAPPIST-1 is a red dwarf star located about ...

How our knowledge of these worlds beyond the Solar System has exploded in the last three decades

The number of planets discovered orbiting other stars stands at over 6,000 and counting, but that’s just the confirmed ones. Many more candidate exoplanets are awaiting verification, some of which are

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

From colliding galaxies to supermassive black holes, we take a look at some of the strangest sights in the universe

A look at some of the thousands of astronomical objects visible in Hubble’s historic photograph