Here's why:

* Supernovas happen to massive stars. Our Sun is a relatively small star, classified as a yellow dwarf. Supernovas occur when stars at least 8 times the mass of our Sun run out of fuel and collapse under their own gravity.

* Our Sun will become a red giant. When our Sun exhausts its hydrogen fuel, it will expand into a red giant, engulfing Mercury, Venus, and possibly Earth. Eventually, it will shed its outer layers and become a white dwarf, a small, dense, and very hot stellar remnant.

So, while our Sun will eventually die, it will not go out with a bang like a supernova.