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How Many Earths Could Fit Inside the Sun?

It is estimated that about 1 million Earths could fit inside the sun. The sun has a diameter that is about 100 times the diameter of the Earth. The sun is a sphere shape, so to determine how many Earths could fit inside, the difference in diameter has to account for three dimensions: from top to bottom, left to right, forward to backward and everywhere in between. Since 100 Earths could line up across the sun, this number is multiplied by itself three times — 100 x 100 x 100 — to calculate how many Earths could fit inside the sun.

More about the sizes of Earth and the sun:

  • The Earth and all of the other planets combined only account for 0.14% of entire mass of the solar system, while the sun accounts for 99.86%.

  • The laws of physics prevent smaller items from fitting inside a larger object without accounting for some empty space. If this empty space wasn’t required, approximately 1.3 million Earths would be able to fit inside the sun.

  • The largest known star is named VY Canis Majoris, and it is estimated to be 1,800 to 2,100 times the size of the sun.

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More Info: nasa.gov

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