It had not been thought possible that such tiny, weak stars could provide the conditions needed to form and host huge planets.

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

A recently discovered celestial body is rewriting our knowledge of the Kuiper Belt and maybe challenging the existence of the ...

The TNO, which are described as minor planets that orbit the sun at a greater distance than Neptune, were found on the edge ...

Scientists had previously believed that no celestial bodies existed in the vast, empty section of space beyond Neptune.

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

If you have a question you’d like an expert to answer, send it to [email protected]. Are planets in the solar system that are closer to the Sun older than the ones further away? – ...

In this region, objects in space could cross any dwarf planet — and Pluto’s — orbit. Pluto also sits within a larger field of objects surrounding the solar system called the Kuiper Belt.

Arizona in 1930 and was considered our ninth planet until 2006. The International Astronomical Union reclassified Pluto as a dwarf planet because it does not clear its orbit of other debris.

However, in 2006, the International Astronomical Union (IAU) redefined what constitutes a planet, leading to Pluto’s reclassification as a dwarf planet. This decision sparked widespread debate ...

When the International Astronomical Union (IAU) demoted Pluto from a planet to a dwarf planet in 2006, it surprised a lot of people, including some scientists. Even many years later, some ...