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

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

Learn how a possible ninth planet, the theoretical Planet X, could have acquired its wide orbit in the outer Solar System - a ...

The object’s aphelion the farthest point on the orbit from the Sun is more than 1,600 times that of the Earth’s orbit,” said ...

Astronomers are using data from the recently decommissioned star-mapping satellite to help determine masses and more accurate ...

While the Milky Way is technically visible year-round, certain times offer better viewing opportunities — especially for ...

Deep Rock Galactic celebrated its 5-year anniversary in May 2025. Below, we look at how it has maintained its identity as one ...

Cheng, together with graduate students from Princeton University, discovered the potential dwarf planet while searching for ...

Russia has revealed the RITM-400 nuclear reactor—its most advanced yet—destined to power the next generation of nuclear ...

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