The sun gives energy to life on Earth, and without this star, we wouldn't be here. But like most things in space, even stars have limited lifetimes, and someday our sun will die.
Once all the hydrogen gets used up, the sun will grow out of this stable phase. With no hydrogen left to fuse in the core, a shell of fusion hydrogen will form around the helium-filled core,
Gravitational forces will take over, compressing the core and allowing the rest of the sun to expand. Our star will grow to be larger than we can imagine — so large that it'll envelope the inner planets, including Earth. That's when the sun will become a red giant
Gravitational forces will take over, compressing the core and allowing the rest of the sun to expand. Our star will grow to be larger than we can imagine — so large that it'll envelope the inner planets, including Earth. That's when the sun will become a red giant