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

Pluto likely acquired large moon Charon in a “kiss and capture” collision billions of years ago. It may have created a subsurface ocean on the icy dwarf planet.

If planets had social media accounts, the solar system would showcase a frenzy of unique personalities. Mercury tweets at ...

However, this year a powerful new telescope is coming online that could prove once and for all that there really is a ninth planet in our Solar System. The same year that Pluto was ignominiously ...

7, 2025 — A researcher has used advanced models that indicate that the formation of Pluto and Charon may parallel that of the Earth-Moon system ... other moons in the solar ...

If the solar system had a corporate structure, Jupiter would be the CEO, while Saturn ensures rules are followed. Venus ...

Scientists have discovered a new type of planetary collision called “kiss-and-capture,” where Pluto and proto-Charon briefly ...

Pluto-Charon Formation Scenario Mimics Earth ... 19, 2024 — New studies offer a clearer picture of how the outer solar system formed and evolved based on analyses of trans-Neptunian objects ...

But these theories didn’t account for the fact that Pluto and Charon may have more structural integrity as icy, rocky bodies on the frigid edge of the solar system. “Pluto and Charon are ...

For decades, astronomers have tried to determine how Pluto acquired its unusually large moon Charon, which is about half the size of the dwarf planet. Now, new research suggests that Pluto and ...