HD 169830 b

HD 169830 b is made up entirely of iron in both liquid and solid states. The planet shows no obvious signs of life, past or present, and the lack of anything not iron supports that claim.

Some people say that a great evil lays dormant at the centre of the planet, its body heat causing the planet to warm enough in certain spots to melt and become slag.

Scientists have yet to figure out what exactly causes certain spots to melt, though some have reported seeing the rivers warp and bend randomly. This indicates there might be something with an incredibly strong magnetic field moving below the surface.