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Home / Science / Our sun will turn into a solid crystal in 10 billion years – Axios

Our sun will turn into a solid crystal in 10 billion years – Axios



In about 10 billion years, our Sun is likely to turn into a white dwarf – a shrunken, extremely dense star whose core has burned out and its outer layers have been shed.

A new study was published on Wednesday In the journal Nature states to provide the first evidence that white dwarf stars form solid crystal nuclei containing metallic oxygen and carbon. The oldest white dwarfs, according to the study, probably consist almost entirely of crystals.

Why it matters: The process of crystallization, much like water becomes ice, but at far higher temperatures (about 1

0 million) degrees Celsius) slows down the cooling of these stars, potentially making them billions of years older than originally accepted. Scientists use white dwarfs as time markers to get a better idea of ​​the age of the stars and planets in the environment.

What They Did: Astronomers from the University of Warwick, UK used observations from the European Space Agency Gaia Satellite to study the intensities and colors of about 15,000 white dwarfs within about 300 light-years of Earth.

  • They found a large number of stars whose colors and intensities corresponded to the phase in the evolution of a star, when they looked like releasing huge amounts of latent heat, resulting in a slower cooling process.
  • According to a press release, such stars may have slowed their aging by up to 2 billion years.

"This means that billions of white dwarfs emerge in our galaxy have already completed the process and are essentially crystal globes in the sky."

– Lead author of the study, astronomer Pier-Emmanuel Tremblay, in a statement

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