Whysun is deadafter5billonyears
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Answer:
Explanation:the sun
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Explanation:
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.
You don't need to worry about this solar death anytime soon, though. Inside the sun, a churning fusion engine fuels the star, and it still has a lot of fuel left — about 5 billion years' worth.
Stars like our sun form when a huge cloud of gas (mostly hydrogen and helium) grows so large that it collapses under its own weight. The pressure is so high in the center of that collapsing mass of gas that the heat reaches unimaginable levels, with temperatures so hot that hydrogen atoms lose their electrons. Those naked hydrogen atoms then fuse together into helium atoms, and that reaction releases enough energy to counter the intense pressure of gravity collapsing the cloud of gas. The battle between gravity and the energy from fusion reactions fuels our sun and billions of other stars in our galaxy and beyond. [Proton Fusion, the Sun's Power Source,