New measurements of radio galaxies reveal that the solar system is racing through the universe at over three times the speed predicted by standard cosmology. Using highly sensitive data from multiple ...

Two “superpuff” planets orbiting a sunlike star over 1,000 light-years from Earth are as big as Jupiter and as dense as ...

Curious Kids is a series for children of all ages. If you have a question you’d like an expert to answer, send it to ...

Sub-Neptunes are the most common type of planet in our galaxy. Bigger than Earth but smaller than Neptune, these worlds ...

On August 12, 2026, lucky viewers in and around Greenland, Iceland and Spain—weather allowing—will be able to see one of ...