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Astronomers have discovered that billions of stars across space are turning into massive crystals...and the sun could be next!

The crystal stars are called "White Dwarf Stars".

The core of a star is made up of liquid oxygen and carbon. As it cools over time, the core transforms into an solid crystal.

In their research, scientists from the University of Warwick found that a large number of stars have been going through this process.

Their findings seem to suggest that stars may be a lot older than previously thought.

They also claim that the sun is going to turn into a massive crystal.

But try not to worry too much, it won't be for another 10 billion years. Phew!

Have you got 'space' for more out-of-this-world trivia? Why not try out our Nasa: true or false quiz?