Sunday, August 2, 2015

If our Sun were suddenly squeezed down to a point

"If our Sun, which is nearly 900,000 miles (1.4 million kilometers) wide, were suddenly squeezed down to a point, its magic sphere would be less than 4 miles (6 kilometers) across. But the Earth, perched some 93 million miles (150 million kilometers) away, would not be affected at all. Indeed, all the planets would still orbit around the Sun in the same way they have for some four billion years if the Sun were that size. Although the Sun’s mass is more condensed, it exerts the same gravitational pull on us. It is only closer in that the gravitational pull of the magical sphere starts to soar."

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