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

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

As it orbits the sun once every 25,000 years, the celestial body 2017 OF201 travels beyond the Kuiper Belt into a region ...

The International Astronomical Union’s Minor Planet Center, which catalogs new moons and other small bodies in the solar ...

Almost 20 years after Pluto was infamously downgraded from its status as a planet, scientists now believe they have ...

A recent study published in Nature Astronomy has confirmed a groundbreaking hypothesis about Pluto’s atmospheric conditions, ...

Trans-Neptunian objects are minor planets that orbit the sun at a greater average distance than the orbit of Neptune ... similar to Pluto's orbit." This extreme orbit, which takes the object ...

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

This means that it orbits the Sun further away than Neptune. Actually ... With a diameter a third of Pluto's, it is incredible that it has been spotted. “The object’s aphelion – the farthest ...

James Webb Space Telescope observations suggest Pluto’s atmosphere is unlike any other in the solar system, confirming a 2017 ...