The SME IPO, which was open for subscription from May 28 to May 30, received a decent demand. Although the trend in the grey ...

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

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 ...

It's an evocative idea that has long bedeviled scientists: a huge and mysterious planet is lurking in the darkness at the ...

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

Apr. 15, 2025 — A new study modeled the chemistry of TOI-270 d, an exoplanet between Earth and Neptune in size, finding evidence that it could be a giant rocky planet shrouded in a thick ...

U.S. astronomers hunting for "Planet Nine" have instead stumbled on what appears to be a new dwarf planet in the solar system's outer reaches.

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 ...

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