When I was a kid, there were nine planets ... them to lurk undiscovered in the darkness beyond Neptune. Now, there’s no scientific reason we can’t have thousands of planets in the solar system ...

Every object in our Solar System is held in place by the Sun’s gravitational pull. The planets in the Solar System are all different but we can divide them into groups based on their common ...

Jupiter is the largest planet in our solar system, and it's so big that all of the other planets could fit inside it ... be an astronaut and get to explore them yourself! Some fascinating facts ...

Comets, on the other hand, live inside the Kuiper Belt and even farther out in our solar system ... the planets are wrapped in their own bubbles—called magnetospheres—that protect them from ...

we now have a good understanding of our Solar System. From the one with the ears, to the 11 year old girl that gave one of them their name, here are the stories behind each of the planets within it.

the planets are still separated by millions or billions of kilometres, and if you could look down on our solar system from ...

but with densities closer to the gas giants in our own solar system. Pitts said most of the planets are smaller than Neptune. Their orbits range from nine to 54 days, putting them closer to their ...

That's small enough to fit entirely inside the borders ... could be more common in our solar system than we once thought. And also perhaps on exoplanets. Those are planets found outside our ...