The number of planets that orbit the sun depends on what you mean by “planet,” and that’s not so easy to define ...

A conjunction is when two or more planets come close together in the sky. On the evening of Jan. 21, Mars, Jupiter, Uranus, Neptune, Venus and Saturn will align in the sky, according to Starwalk.space ...

Skywatchers: A six-planet alignment peaks this week as Mars, Jupiter, Uranus, Neptune, Venus, and Saturn come together for ...

"We were definitely surprised by the 'kiss' part of kiss-and-capture. There hasn't really been a kind of impact before where the two bodies only temporarily merge before re-separating!" ...

Researchers accounted for the previously overlooked structures of the dwarf planet and moon in computer simulations of a ...

NASA Voyager 1 probe discovers Saturn’s moon, Epimetheus. Saturn would be the last planet Voyager 1 would visit before ...

This week’s aspects echo both on a very personal level, as Venus lingers close to Saturn in sensitive Pisces, and on a ...

Although you may feel apprehensive during this time, Saturn begins a positive relationship with Pluto in Aquarius, supporting you throughout this part of the year as Saturn and Pluto team up to ...

New research suggests that billions of years ago, Pluto may have captured its largest moon, Charon, with a very brief icy "kiss." The theory could explain how the dwarf planet (yeah, we wish Pluto ...

Pluto, considered the ninth planet in our solar system until it was reclassified to dwarf planet status in 2006, is thought to have undergone an impact that broke off the largest of its five moons ...