With 8 planets now known ... the planets in the outer solar system. Nevertheless, because it orbited the Sun like a planet, it was classified as a planet and named Pluto, after the god of outer ...

Our solar system has eight planets but in recent years, astronomers have theorised there could well be a ninth planet that's hiding in our solar system we've not been able to see yet.

In the time Pluto was found, classified as a planet and reclassified as a dwarf planet, it has not completed one orbit. One ...

Regardless of whether Pluto is a planet or a dwarf planet, it remains a fascinating part of the solar system, from its huge ...

But what’s it like on other planets? There are eight planets in our solar system. The closest one to the sun is Mercury, then it’s Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune.

Small, cold, and absurdly far away, Pluto has always ... the last of the classical solar system’s unexplored worlds. We’ll finally get to meet the former ninth planet face-to-face—to really ...

And if you are still a Pluto ... the solar system is full of bodies, and some are large, and some are small. Some are in regular orbits, and some are not. Which we call “planets” and which ...

The solar system has nine planets, but in 2006 the International Astronomical Union declared Pluto a dwarf planet, making the ...

And don't forget the plutoids, — dwarf planets beyond the orbit of Pluto — and the trans-Neptunian objects, which include the plutoids and other small solar system bodies that orbit beyond ...

In December 2003, the Hubble Telescope spotted something peculiar on the surface of Ceres, a dwarf planet in the asteroid belt between Mars and Jupiter. Hazy images revealed something bright and ...