Per Wikipedia, hydrogen exhaustion will begin in about 5 billion years from now. > The Sun does not have enough mass to explode as a supernova. Instead it will

Per Wikipedia, hydrogen exhaustion will begin in about 5 billion years from now. > The Sun does not have enough mass to explode as a supernova. Instead it will exit the main sequence in approximately 5 billion years and start to turn into a red giant. As a red giant, the Sun will grow so large that it will engulf Mercury, Venus, and probably Earth. https://en.wikipedia.org/wiki/Sun https://en.wikipedia.org/wiki/Sun