About 4.5 million years ago, a great cosmic dog kicked past our Solar System – and its effects may still be seen today.

Astronomers have discovered that 3I/ATLAS is carrying methanol and other chemicals that were probably important in the origin ...

New measurements of radio galaxies reveal that the solar system is racing through the universe at over three times the speed ...

Analysis of the second confirmed interstellar comet to visit our solar system suggests that the alien body could be covered ...

Nearly 4.5 million years ago, two large, hot stars brushed tantalizingly close to Earth's sun. They left behind a trace in ...

BRITS are clueless about our solar system – with four in 10 unable to identify the biggest planet and a quarter uncertain ...

A small, icy traveler from deep space has just threaded its way through the inner Solar System, offering a fleeting but profound reminder that our planetary neighborhood is not isolated. As ...

After decades of searching, astronomers may have finally stumbled upon the first moon known to exist beyond our solar ...

Eight planets, hundreds of moons, hundreds of thousands of asteroids, and billions of comets orbiting our Sun make up our ...

"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 ...

Scientists traced the Moon's parent planet Theia to the inner Solar System, solving a 4.5-billion-year mystery.

On Wednesday, during a press conference at NASA’s Goddard Space Flight Center in Greenbelt, Maryland, the space agency shared ...