This is an interesting question. We know a lot
about the Universe, but not enough to answer all
the questions about it. In our Solar System the
Sun which is a star, is the biggest object. We do
not know any planet bigger than the Sun, but we
know that far away there are other stars bigger
than our Sun and there are some smaller than it.
For instance, some astronomers recently found the
tiniest full-fledged star known, an object just 16
percent bigger than Jupiter, located toward the
center of our Milky Way Galaxy.
that there are millions of galaxies apart from
ours, there are also millions of stars, bigger and
smaller than our Sun, but apart from the planets
in our Solar System, we do not still know about
the ones that might be in other galaxies. The
Universe is immense and there are still a lot of
questions to answer.
Just to give you an
idea, the nearest star to the earth is the Sun at
93 million miles, but the next nearest known star
is Proxima Centauri at 4.3 light years -- about 40
trillion miles. You can imagine how difficult is
to know more about the space.
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