Curious Minds did you know? Caltech astronomers have found mathematical evidence suggesting there may be a ninth planet in our solar system.

The object nicknamed "Planet Nine" by the researchers, could have a mass about 10 times the size of Earth and orbit about 20 times farther from the Sun on average than Neptune. It could take between 10,000 and 20,000 Earth years to make one full orbit around the Sun.

This superb 300 XXL piece children's jigsaw puzzle features a striking and imaginary view of the 8 planets in our solar system, Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus and Neptune.

Also shown is the dwarf planet Pluto and the mysterious, theoretical "Planet Nine".

The Sun's rays, the shimmering light from passing comets and the glittering stars shine a light on everything in view.

A great puzzle for children aged 9 years and up.