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You are here: Home / Space / How Will the Sun Die When It Uses Up Its Hydrogen In 5 Billion Years and How Will It Become a Black Dwarf?

How Will the Sun Die When It Uses Up Its Hydrogen In 5 Billion Years and How Will It Become a Black Dwarf?

July 18, 2020 by Karen Hill

Scientists expect that after another 5 billion years, the Sun will have used up its hydrogen energy supply and will begin to burn helium.

At that point, the Sun will likely grow to become a red giant, big enough to encompass the orbit of Mars.

Like other red giants of its size, its outer layer will disperse as stellar wind, leaving its core to cool and dim as a white dwarf.

Eventually, when its core is cold and dark, the Sun will be a black dwarf.

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  • When Did the World Population First Reach 1 Billion People and and When Did the Population Reach 6 Billion?
  • What Is the Sun Made of and What Other Elements Is the Sun Composed of Besides Hydrogen and Helium?
  • Why Does the Sun Shine and How Does the Sun Produce Energy By Converting Hydrogen To Helium?
  • How Do White Dwarfs Become Black Dwarfs and Why Are White Dwarf Stars So Dense?
  • Why Is a Black Hole Black, Where Do Black Holes Come From, and When Were Black Holes First Discovered?

Filed Under: Space

About Karen Hill

Karen Hill is a freelance writer, editor, and columnist. Born in New York, her work has appeared in the Examiner, Yahoo News, Buzzfeed, among others.

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