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

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

Astronomers have discovered a mysterious dwarf planet, 2017 OF201, far beyond Pluto. This discovery challenges existing ...

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

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

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

Scientists have unlocked one of the solar system's many secrets from an unexpected source: a planetarium show.

Astronomers have discovered a new dwarf planet, named 2017 OF201, far beyond Pluto's orbit. It takes 25,000 years to orbit ...

Mankind is at the threshold of discoveries. How does Pluto’s distance help us understand the size of the universe To understand just how enormous space is, let's begin with an analogy that's ...

Earth has a newly-discovered neighbor in the solar system. But the heavenly body – possibly a dwarf planet à la Pluto ... OF201 beyond the Kuiper Belt, a donut-shaped section of space ...