What happens when sun dies out?

Answer 1

The earth will be dead way before the sun is dead, but if the sun dies, everything in the solar system is goning to be melted because of the explosion. But if the planets are not melted, they will be frozen for ever because there is no sun.

Answer 2

When the Sun dies out, it will first expand into a red giant, consuming the inner planets in its path. Eventually, it will shed its outer layers and form a planetary nebula, leaving behind a white dwarf at its core. The white dwarf will gradually cool and fade away over billions of years.