A new astronomical study suggests that Earth could one day be ejected from the solar system, not by the aging of the Sun, but ...

Billions of years from now, the Sun will swell into a red giant, swallowing Mercury, Venus, and Earth. But that’s not the ...

The James Webb Space Telescope has detected clouds made of silicates, similar to sand here on Earth, as well as water, ...

Simulations show that the stars’ tug could send Mercury, Venus or Mars crashing into Earth — or let Jupiter eject our world from the solar system.

The TNO, which are described as minor planets that orbit the sun at a greater distance than Neptune, were found on the edge ...

A potential new dwarf planet has been discovered in the outer reaches of the solar system, and its existence poses the ...

In the cold, dark outskirts of planetary systems far beyond the reach of the known planets, mysterious gas giants and ...

It's an evocative idea that has long bedeviled scientists: a huge and mysterious planet is lurking in the darkness at the ...

There’s a new object in the distant reaches of our solar system, and it might just offer clues to a long-standing cosmic ...

A series of studies have cast doubt on the sensational claim that "the strongest evidence yet" was found that life exists anywhere else besides Earth.

Twenty years ago, Congress gave NASA a directive: find 90% of the near-Earth asteroids that could potentially harm our little ...