The universe has quasi-moons, mini-moons, and moonlets, but no official definition of what counts as a moon.

Pluto is no longer classified as a planet, it’s a dwarf planet, however, it still has five moons. Now astronomers say they ...

Every planet takes its turn going retrograde, and since Sunday, May 4, Pluto, the planet of transformation, has moved ...

Astronomers are investigating a potential hidden planet, dubbed Planet Y, far beyond Neptune. Its gravitational pull is suspected to be causing unusua ...

Our solar system now, once again, officially consists of only eight planets. Although largely debunked, speculation continued ...

"This paper is not a discovery of a planet, but it's certainly the discovery of a puzzle for which a planet is a likely solution." Related: Scientists Discover New Dwarf Planet in Solar System, Far ...

Astronomers have identified a small but significant possibility that a Neptune-sized planet is quietly orbiting within the ...

Five zodiac signs will have really good horoscopes starting on October 30, 2025. There's a power play going on between ...

Exoplanet hunters Christopher Watson and Annelies Mortier explain the long search for a 'twin Earth' capable of sustaining ...

Mercury will square Pluto retrograde on Oct. 7, intensifying group dynamics and social exchanges that lack integrity.