Pluto isn't alone—it's part of the Kuiper Belt with possibly hundreds of other planet-sized objects. Because Pluto hasn't ...

Does our Solar System have 9 planets or only 8? Astronomers have gone back and forth on that a lot, with Pluto now being classified as a dwarf planet. However, out beyond Neptune there could be ...

According to a recent YouGov poll, 35% of Americans think Pluto is not a planet. But they are all wrong—kind of. To get to ...

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

The article humorously portrays each planet of the solar system as different types of gym personalities. Jupiter is obsessed ...

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 ...

In August 2006, the International Astronomical Union made the controversial, but correct, decision to demote Pluto from its ...

If the solar system held a poetry slam, each planet would present its unique poetic style. Mercury delivers rapid-fire verses ...

Jan. 7, 2025 — A researcher has used advanced models that indicate that the formation of Pluto and Charon may ... a clearer picture of how the outer solar system formed and evolved based on ...

Charon is unusual because it is the largest moon in the solar system compared with its parent body. In fact, Charon and Pluto are so similar in size that they are considered a double dwarf planet ...