WASP-104b: Pitch black planet darker than charcoal discovered WASP-104b: Pitch black planet darker than charcoal discovered The Planet Was Discovered By Researchers From Keele University In The UK, Who Used NASAâs Kepler Telescope To Show That It Is âdarker Than Charcoal.â The Dark Planet Is Named WASP-104b. News Nation Bureau | Edited By : Shashikant Sharma | Updated on: 25 Apr 2018, 04:57:41 PM New Delhi: A ‘pitch black’ planet, darker than charcoal has been discovered. About 470 light-years away, it absorbs 99 per cent of light, making it one of the darkest planets ever found. The planet was discovered by researchers from Keele University in the UK, who used NASA’s Kepler telescope to show that it is ‘darker than charcoal.’ The dark planet is named WASP-104b.