Answer 1:
The sun is a sphere (3D circle) so there are a few
ways to describe how big it is. One of the most
useful is probably the diameter which you can
think of as the distance from the north pole to
the south pole. The diameter of the sun is about
860,000 miles which is about 110 times longer than
the Earth's diameter. This means that if you tied
110 Earths together like in a pearl necklace, it
would be as long as the sun's diameter. In
general, when a sphere has a longer diameter, it
has a much larger volume. That larger volume means
you could fit over a million Earths inside a
hollowed out sun! To visualize this, imagine a
small marble which is Earth. By comparison, the
sun would be a ball that stretches from the floor
to the ceiling of an average room. Interestingly
enough, as large as the sun is, its only a medium
sized star. There are stars that have a diameter
that is over 500 times larger than the diameter of
the sun!
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