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What if Sun suddenly became half its Size?
The Sun's gravitational pull holds planet Earth in orbit. If the Sun suddenly became half its Size, Earth may stray out of the Solar System.
Sunlight is essential for agriculture. If the Sun suddenly became half its Size, even our dinner plates may suddenly become half in size.
Solar energy is now also used to heat our homes. If the Sun suddenly became half its Size, even the heating in our homes may reduce by half.
https://education.nationalgeographic.org/resource/power-sun/