While the James Webb Space Telescope looks for the most distant galaxies ever seen, astronomers have discovered something new ...

The planet Neptune has a large dark spot "with an unexpected smaller bright spot adjacent to it," inveru observations using ...

Discovery of 2017OF201, a large trans-Neptune Object, challenges previous beliefs about the Kuiper Belt and hints at the existence of a theoretical Planet Nine.

A potential new dwarf planet has been discovered in the outer reaches of the solar system, and its existence poses the ...

A team of astronomers believe they may have discovered a new dwarf planet—just like Pluto—on the edge of our solar system.

The small world was found during a search for the hypothetical Planet Nine, and astronomers say the next time it will reach ...

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 ...

Take a peek at the early-morning duo of Saturn and Neptune, rising together in Pisces around 2:30 A.M. local daylight time. By 4 A.M. local daylight time they are some 15° high, with blazing ...

To celebrate the milestone, later this year, the Neptune Festival will launch a photo campaign for people to “check in” with ...