The planet is very different to Earth. 'It's a giant planet,' explains Dr Kukula, 'a gas planet, a bit like Jupiter in our solar system. But the interesting thing that they've discovered is that it has a very different composition to the planets in our solar system. So where our planets have a half fraction of oxygen then carbon, this planet has it the other way around, it has more carbon than oxygen.' This suggests that there is more than one way to make a solar system and the range of planets in the Universe could be much wider than previously thought.
Diamonds and graphite
Dr Kukula says that if there are smaller planets in the same solar system with a similar composition, rich in carbon, their rocks could be rich in minerals such as carbon and diamonds, unlike earth which has silica, the sand that rocks on earth are made from. 'This is where this diamond planet idea comes from, they haven't actually detected a diamond planet yet,' explains Dr Kukula, it's hypothetical, 'but you can imagine bizarre landscapes with black graphite rocks lying around and the surface could be covered with tarry liquids rather than water.'
Source: British Council