Not pluto, but there's a planet named "Lucy" that is made up of diamonds. Note : Diamonds are expensive because they are rare. If you bring back even a small part of this planet back to Earth, diamonds will lose all their rarity. And then they will be sold for what they truly are, useless chunks of carbon. read more
Not pluto, but there's a planet named "Lucy" that is made up of diamonds. Note : Diamonds are expensive because they are rare. If you bring back even a small part of this planet back to Earth, diamonds will lose all their rarity. read more
The planet - called 55 Cancri e - has a radius double the size of Earth’s, and weighs eight times more. Whilst Earth’s surface is covered in water and granite, the new planet is thought to be covered in diamonds and graphite. read more
Case in point: the diamond rains of the ice giants. Scientists have long thought that massive planets like Neptune and Uranus—which contain relatively tiny rocky cores covered with a mantle of slurried water, ammonia, and methane ices and surrounded by a thick atmosphere—are subject to rain made of literal diamonds. read more