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 ...

New high-contrast images from SPHERE show a stunning variety of debris disks shaped by collisions of tiny planet-building ...

The spacecraft had measured a surprisingly strong electron radiation belt during a flyby of Uranus, which had remained a ...

"During the early solar system's game of cosmic billiards, Earth was struck by a neighbor,” said Dauphas. “It was a lucky shot. Without the moon's steadying influence on our planet's tilt, the climate ...

Learn what the first maps of the sun's atmospheric boundary reveal about solar wind and its escape into space.

The universe is always moving. While we've found evidence of rogue black holes and planets, new research suggests that a passing star could be out there somewhere. Unfortunately, If it were to swing ...

Billions of years ago, while the solar system was still young, a massive object may have drifted into it. It's not a spaceship, but it is an alien visitor in its own right—a colossal interstellar body ...

A passing star, or a stellar flyby, with the potential to pull Neptune out of its orbit by just 0.1%, could mean catastrophe for the entire solar system. But don’t worry — it won’t happen in our ...

The interstellar comet 3I/ATLAS has just done something no visitor from another star system has ever been caught doing: it ...

This story sounds wild—even incredible. Black holes! Dark matter! Jostling planets! Yet the scenario is plausible—and testable soon. Black holes the size of an atom that contain the mass of an ...

Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. To us everything seems normal. Our planet, blue and bursting ...