An international team of astronomers, co-led by researchers at the University of Galway, has made the unexpected discovery of ...

The unexpected detection of a new planet has been hailed as a “remarkable discovery” by Irish astronomers who were involved ...

Potential discovery of new dwarf planet adds wrinkle to Planet Nine theory By Nick Butler, Fox News Published May 31, 2025, 6:00 a.m. ET ...

The science community may be ecstatic over the discovery of a ninth planet, but the former planet "Pluto" had a totally different reaction. Hours after scientists announced there's solid evidence ...

“Astronomers have detected the most promising signs yet of a possible biosignature outside the solar system, although they remain cautious,” states a Cambridge University press release.

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.

In the meantime, Cheng said he hasn’t given up searching for Planet Nine. The new discovery, however, may throw a wrench into some long-standing theories of the planet’s existence.