Astronomers have directly observed two exoplanets shedding their outer layers into space for the first time. The observations ...

A rare “ultra-hot Neptune” has revealed startling details, from near-2,000°C surface temperatures to unexpected reflective ...

In world-first observations, the James Webb Space Telescope is watching two distant alien planets "spilling their guts into ...

This is the second planetary alignment in about a month. The last one featured Mars, Jupiter, Saturn and Venus, which were ...