An object eight times the mass of Jupiter may have swooped around the sun, coming superclose to Mars' present-day orbit ...

When you first learned about the Solar System, you probably saw diagrams that made it look orderly, with planets arranged in ...

In the early evening, look to the southwest and you'll see Venus (the brightest object in the sky after the Sun and Moon) and ...

All of our solar system’s planets are lining up to parade through the night sky at once. This extraordinary celestial event will see the sky scattered with seven visible planets in what is known ...

Pete Hegseth's nomination to lead the Pentagon clears a key hurdle in the Senate Scale AI CEO Alexandr Wang on U.S.-China AI ...

Study reveals an interstellar object's impact on planetary orbits, reshaping solar system dynamics. Discover how simulations ...

Especially since all seven of the other planets in our solar system are about to become visible at once in a great planetary ...

The six planets were visible in the days immediately leading up to Jan. 21, and for about four weeks afterward. Mars, Venus, ...

Six of our cosmic neighbors are expected to line up across the night sky tonight, in what has been dubbed a "planetary parade ...

Stargazers will be treated to a rare seven-planet alignment in February. This is what scientists hope to learn.

The research, yet to be peer-reviewed, sheds light on what could have changed the orbits of several planets in the solar ...