Is Planet 9 real? Scientists have found compelling evidence that a hidden world may be lurking at the edge of our solar system, far beyond Neptune. In this video, we explore the mystery of Planet 9.

A newly discovered object speeding through our solar system is sparking excitement among astronomers because it’s not from around here. Believed to be a comet, the object is only the third celestial ...

The Solar System is filled with facts that sound invented, from sideways planets to dying storms and volcanoes taller than ...

See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. A tiny black hole may pass through our solar system once every ten or ...

The workings of our solar system are roughly the same now as they have been for millions of years. Moons circle their planets, the planets circle the sun, the sun’s magnetic fields and sunspots wax ...

Astronomers have discovered that the Solar System traversed the Orion star-forming complex, a component of the Radcliffe Wave galactic structure, approximately 14 million years ago. This journey ...

While life on Mars (and Venus) has long been an obsession for those wondering if we're alone, there are other places in our ...

How fast and in which direction is our solar system moving through the universe? This seemingly simple question is one of the key tests of our cosmological understanding. A research team led by ...