Throughout history, humankind has looked up at the stars and wondered what they were. Playing a central role in mythology, philosophy and superstition, it wasn’t until the rise of astronomy that we began to understand these celestial bodies. After Galileo Galilei’s incredible discovery, we now know the role of the Sun as the centre of a system of planets, dubbed the Solar System. As new technology advances we discover more and more about our fellow planets, Mercury, Venus, Mars, Jupiter, Saturn, Uranus, Neptune and the dwarf planet Pluto. Read on to discover just how much we’ve learned about our neighbours so far, and how much more knowledge is still to come.