• Are there any planets still to be found?

    It is quite possible that there are additional planets within our solar system. These would include Ceres which was once an asteroid but now considered by many to be one of the planets of our solar system. There is also Pluto’s moon named Charon, which many astronomers now consider to be a planet in its own right. There is also another object near to Pluto which is about 2500 km across known as Xena, which many now consider to be a planet.

    Outside of our solar system many planets have been discovered circling around other suns, and it is reasonably predicted that there may well be an uncountable number of planets in the universe.