Twinkle, Twinkle...

Hmmm, a white dwarf that seems to have condensed into a giant diamond planet?

A team of astronomers dotted across the globe have discovered an unusual planet circling an old, dead star about 4,000 light years away that appears to be a gigantic, solid diamond.

The planet is about five times the diameter of the Earth, and circles the dead star of about 12-miles in diameter every two hours and 10 minutes.

From the size and mass (1.4 Sols), it's not a planet, but the junior partner in a twin star system.

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