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

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.

OF201, a possible dwarf planet with a 25,000-year orbit, challenging theories about Planet Nine and the solar system’s edge.

Scientists have identified an object about 700km wide inhabiting the frigid outer reaches of our solar system that might ...

Scientists believe that Kuiper Belt objects (KBOs) are primitive and icy remnants from the early days of the solar system, about 4.5 billion years ago. They formed from leftover material after the ...

Thanks to JWST, we've learned key details about methanol — a key building block for organic compounds necessary for life — on distant icy worlds.

Using the James Webb Space Telescope (JWST), astronomers from Johns Hopkins University (JHU) and elsewhere have detected ...

Researchers discovered a new trans-Neptunian object, 2017 OF201, potentially a dwarf planet, in the outer solar system.

NASA says with the help of data from the James Webb Space Telescope, scientists have confirmed the presence of water crystals around a Sun-like star, some 155 light-years away from Earth. The star, ...

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