However, not all of those celestial bodies survived, and a new analysis of a the meteorite NWA 15915 shows that it likely originated from a world that was similar to Mercury in its composition—but not ...

The IAU also estimates that there could be "more than 100" extra dwarf planets waiting to be found in the outer solar system, all of which could have moons. "Just like the giant planet satellites ...

Out past Neptune are countless small icy and rocky bodies called Trans-Neptunian Objects (TNOs), and many of these have moons ...

Gonggong is a dwarf planet and a member of the scattered disc beyond Neptune. As of 2019, its distance from the Sun is 88 AU, and it is the sixth-farthest known Solar System object.

The ringed gas giant Saturn has officially replaced Jupiter as the planet in our solar system with the most moons. The ...

Saturn was already the reigning champion in the moon department. Now, with 274, Saturn has more moons than all the other ...

“New Horizons shattered a major paradigm of planetary science,” says Alan Stern, the mission’s principal investigator. “Pluto turns out to have as much complexity as Mars or Earth, so much so that I ...

A surprising chemical difference between Pluto and Sedna, another dwarf planet in the distant Kuiper ... Comet 67P/Churyumov-Gerasimenko and Saturn's moon Enceladus.

This is particularly puzzling, as a vast majority of meteorites can be traced to some well-known parent body—whether that be ...