hot Jupiter

Superflares are powerful magnetic events much larger than solar flares. They erupt above giant starspots on a variety of stars, but the mechanism behind them is unclear.

Evidence of debris discs, remnants of planet formation, has been discovered in two extra-solar systems.

Aurorae on planets outside our solar system, or exoplanets, could be 100 to 1,000 times brighter than those ...

NASA's Hubble Space Telescope captured its one-millionth science observation on July 4 while searching for water in the ...