The sun: Facts about the bright star at the center of the solar system
SMRTR summary
The sun, our solar system's central star, is a massive ball of gas and plasma mainly composed of hydrogen and helium. At 865,000 miles across and 93 million miles from Earth, it powers life through nuclear fusion. Containing over 99% of the solar system's mass, it could fit over 1 million Earths inside. Formed 4.5 billion years ago, the sun is halfway through its lifespan and will eventually expand into a red giant before becoming a white dwarf.
SMRTR provides this summary for quick context. The original article belongs to Live Science.
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