Scientists may have discovered a dwarf planet far beyond Neptune — an unearthing that may disprove a longstanding theory ...

For the dwarf planet candidate, one trip around the sun takes over 24,000 years. Its orbit challenges a proposed path for a hypothetical Planet Nine.

Webb has captured a frigid exoplanet in a wildly tilted orbit, revealing a system shaped by past planetary violence and ...

Given just how big space is, the solar system seems like it shouldn't be too mysterious. But there are actually plenty of ...

Researchers in the US have suggested there is a 40 percent chance a ninth planet could exist in our solar system. Planet Nine ...

(Reuters) -The robotic Solar Orbiter spacecraft has obtained the first images ever taken of our sun's two poles as scientists ...

The European Space Agency's Solar Orbiter captured the first-ever images of the sun's south pole in March, which were ...

June 3, 2025 — Astronomers have revealed new research showing that millions of new solar system objects are likely to be detected by a brand-new facility, which is expected to come online later this ...

We Earthlings see the sun every day of our lives—but gaining a truly new view of our star is a rare and precious thing. So ...

Astronomers have captured silicate clouds and a mysterious disk around two giant young exoplanets, revealing surprises that ...