Astronomers have discovered a planetary system that appears to flip one of astronomy's most reliable rules on its head.

Artist's concept depicts new research that has expanded our understanding of exoplanet WASP-69 b's "tail." NASA/JPL-Caltech/R. Hurt (IPAC) Astronomers using the W. M. Keck Observatory in Hawaii have ...

Add Yahoo as a preferred source to see more of our stories on Google. Astronomers have discovered a distant exoplanet with a tail that stretches over 5.5 million miles long. Astronomers have ...

A depiction of a gas giant planet with rings orbiting a distant star. Astronomers detected hundreds more new worlds beyond the solar system this year and worked to better understand what makes them ...

Planet hunters have grown used to strange worlds, but a handful of discoveries now point to something even more radical: giant planets that loop around their stars on orbits so skewed they almost defy ...

Join Mashable as we look back at the viral videos, breakout movies, memes, dating trends, tech buzz, scientific breakthroughs, and more moments that defined 2025! Astronomers have discovered over 100 ...

Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. NASA’s James Webb Space Telescope has captured the first ...

Scientists are unraveling the mysteries of "steam worlds"—exoplanets known as sub-Neptunes that are rich in water but orbit so close to their stars that their surfaces are shrouded in thick ...

A pair of stars with three planets in orbit around one star or the other is the first system of its kind that has been confirmed. Pairs of stars, known as binaries, appear to be more common in the ...