After a decade-long search, some scientists say a growing number of clues point to the existence of a hidden planet in the Kuiper Belt beyond Neptune — and they may soon have the opportunity to find ...

Billions of years ago, Earth was home to extreme environments, including intense UV radiation, frequent volcanic eruptions, ...

The solar system has nine planets, but in 2006 the International Astronomical Union declared Pluto a dwarf planet, making the ...

Fastest Known Planetary System May Have Been Pushed by Our Galaxy’s Supermassive Black Hole ...

As technology continues to progress, though, could we uncover a new one? Astrophysicists don't know if there are ...

Astronomers are investigating the possibility of a hidden ninth planet beyond Neptune, which could explain unusual orbital patterns in the Kuiper Belt.

It would depend on a lot, say our readers, from how big it was to the route it took - but it could have significant ...

The smooth, planet-less disk of the Vega star system challenges planetary formation theories, suggesting alternative cosmic ...

Tiny grains from asteroid Ryugu are revealing clues to the magnetic forces that shaped the far reaches of the solar system over 4.6 billion years ago. The findings suggest the distal solar system ...

The search for Planet Nine, a hidden world beyond Neptune, is heating up as scientists prepare to use a powerful new telescope.

Scientists speculate if Planet Nine is a new planet or a primordial black hole. Discoveries could redefine our understanding ...

Planetary exploration in Starfield varies from world to world. The basics though is that when entering one of the Starfield systems, you focus on system bodies, entering planet view. This will ...