Astronomers have discovered icy rocks in the outer solar system that seem to defy the laws of physics, suggesting the ...

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 ...

Before the ribbon-cutting for the solar system walk on the Columbia Greenway Rail Trail on Nov. 29, created by WHS Astronomy ...

Nearly 4.5 million years ago, two enormous, blazing stars swung close to the solar system. They did not touch the sun, but ...

Earth may have a moon today because a nearby neighbor once crashed into us, a new analysis of Apollo samples and terrestrial ...

Scientists find that two hot stars passed near our solar system 4.4 million years ago, altering nearby interstellar clouds.

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 spotted an intriguing cluster of objects in the Kuiper belt, an enormous, donut-shaped region of icy objects beyond Neptune.

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