Over the past decade or so, astronomers have speculated about the characteristics of rogue planets in the Milky Way galaxy.

Alternatively, perhaps it was a rogue planet picked up by the sun, maybe early in the history of the solar system when the ...

U.S. energy officials are reassessing the risk posed by Chinese-made devices that play a critical role in renewable energy ...

To understand how chaotic the early solar system was, we need only gaze at the moon. Its cratered surface bears the scars of ...

Astronomers have long speculated about an unseen planet lurking in the solar system's outer edge. This hypothetical world, dubbed Planet Nine, could explain the unusual clustering ...

Our solar system may have a ninth planet after all, following the declassification of Pluto nearly two decades ago, ...

Discover the order of planets in the solar system. From Mercury to Neptune, explore our solar system and learn more about our cosmic home. The solar system is our cosmic neighborhood, made up of ...