Here's why:

* Sun's Mass: Supernovae occur when massive stars (at least 8 times the mass of our Sun) run out of fuel and collapse under their own gravity. Our Sun is a medium-sized star.

* Sun's Evolution: The Sun will eventually evolve into a red giant, engulfing Mercury, Venus, and possibly Earth. After that, it will shed its outer layers, leaving behind a white dwarf, a dense, hot remnant of its former self.

While our Sun won't go supernova, it will eventually fade and die, leaving behind a white dwarf. This process will take billions of years.