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.

The search for life beyond Earth is a holy grail quest for many experts, but finding where to look is a core issue.

Beyond the edge of Neptune, a distant realm of icy debris known as the Kuiper Belt stretches deep into space. This frozen ...

Scientists have discovered a giant planet orbiting a tiny red dwarf star, something they believed wasn t even possible. The ...

The James Webb Space Telescope (JWST) has discovered that a hazy sky over frozen Pluto is helping to cool the dwarf planet's ...

Whatever the origin story, TOI-6894b is leading the ranks of other known gas giants orbiting small and faint stars that ...

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

Astronomers found a giant planet orbiting one of the smallest stars ever known to host one, challenging everything we thought ...

Astronomers have uncovered a distant celestial body that may be a new dwarf planet, orbiting the Sun from more than twice the distance of Pluto. Found by researchers at the Institute for Advanced ...

Star TOI-6894 is just like many in our galaxy, a small red dwarf, and only ~20% of the mass of our Sun. Like many small stars ...

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