Illustration of Barnard's Star as seen from the surface of one of its planets. Credit: International Gemini Observatory/NOIRLab/NSF/AURA/R. Proctor/J. Pollard Just 5.96 light-years from Earth sits ...

The planet WASP-121b is extreme. It's a gas giant almost twice as big as Jupiter orbiting extremely close to its star–50 ...

For a brief moment, it looked like asteroid 2024 YR4 had a real shot at hitting Earth in 2032. With its impact probability climbing to a record-breaking 3%, astronomers scrambled to refine its ...

The Moon’s size on the horizon has puzzled humans for millennia. Despite ancient philosophers and modern scientists tackling ...

"It feels like something out of science fiction," said European Southern Observatory astrophysicist Julia Victoria Seidel.

Scientists mapped exoplanet WASP-121b’s atmosphere, revealing extreme winds and hidden metals. Iron and titanium appear ...