It seems 2025 will have a strong start, too, with a planet parade just a few weeks into the new year. A planet parade is when ...

A new paper discusses the possible existence of an unseen planet in the outer solar system, the so-called "Planet X" or ...

Just as Homo sapiens once exploded out of Africa to colonize the Earth our influence is spreading in the solar system ... but nearly as old as the giant planet itself at billions of years in ...

Watch this video to find out more about the Earth, planets in our Solar System and other planets far off in outer space. From up here on the International Space Station I get a great view of Earth.

With the help of a three-dimensional map of stars near the sun, astronomers can search for alien planets that might ... in ...

If Brown’s hidden world is real, Rubin will almost certainly find it or strong indirect evidence that it exists. “In the ...

The Sun is an incandescent but benevolent dictator. For billions of years, it's kept our Solar System well organized and ...

New studies offer a clearer picture of how the outer solar system formed and evolved based on analyses of trans-Neptunian objects (TNOs) and centaurs. The findings reveal the distribution of ices in ...

One possibility is that a rogue planet, about 1–2 times Earth’s mass, influenced their paths early in the solar system's ...

There may be an undiscovered planet in the outer solar system whose presence is revealed by the strange orbit of objects beyond the eighth planet Neptune. The tantalizing prospect of a ninth ...