Scientists solve solar system mystery after freak accident at planetarium show - The Oort Cloud’s true shape has remained ...

The first observations of Pluto by NASA's James Webb Space Telescope (JWST) reveal dramatic phenomena on its surface, like ...

For centuries, astronomers have sought to understand the formation and evolution of the solar system and the dynamics that ...

As exotic as distant galaxies may seem, there are plenty of wonders to discover in our own backyard. The solar system ...

But this assumes that nothing affects the Solar System in the meantime, and that is not a certainty. As we travel around the ...

Scientists have identified an object about 435 miles (700 km) wide inhabiting the frigid outer reaches of our solar system that might qualify as a dwarf planet, spotting it as it travels on a highly ...

A recent study found that Jupiter was once twice the size that it is now, making it big enough to swallow up 2,000 Earths.

Today, it’s believed that Jupiter and Saturn, the largest planets, were the first to fully form, both within a few million ...

A new dwarf planet, discovered beyond Neptune and described as Pluto's 'cousin,' could void the hypothesis of a Planet X in ...

Scientists are intrigued after spotting a highly unusual celestial object lurking at the very edge of our solar system.