On Aug. 24, 2006, the International Astronomical Union (IAU) decided that Pluto wasn't a planet anymore. Instead, Pluto is ...

Without other planets or the Moon, Earth would lose tides, gravity stability, and the conditions necessary for life.

Get ready for the rare 'planet parade' on August 25, 2025! Six planets, Saturn, Jupiter, Venus, Mercury, Uranus, and Neptune, ...

Astronomers propose a new hypothetical planet, Planet Y, beyond Neptune, based on observed orbital anomalies in the Kuiper ...

Researchers at the University of Minnesota Twin Cities have made a new discovery by observing and analyzing the first new ...

Discover the incredible potential of space megastructures and how they could redefine the future of humanity. From Dyson ...

Researchers at the University of Colorado Boulder are helping to lead planning efforts for NASA’s next major space telescope ...

There's a six-planet parade on Monday, Aug. 25, just before dawn. Saturn, Jupiter and bright Venus will dominate the scene, with Mercury putting in a fleeting appearance ...

On August 24, 2006, Pluto ceased to be considered a planet. A mixture of rock and ice located in the Kuiper Belt, a region of icy objects beyond the orbit of Neptune. This demotion ...

SALT LAKE CITY (ABC 4) – Happy Thursday, Utah! It’s been a sunny start for SW Utah as the heat continues to build. Highs will ...

Astronomers have discovered a rare quadruple star system with two red dwarfs and two brown dwarfs orbiting together.