Answer 1:
Hi, thanks for the cool question. Can you
imagine that over 400 years ago a scientist called
Johannes Kepler found a law that describes how the
planets rotate around the sun? And many
thousand years before that, people were already
looking at the stars and observing that planets
rotate around the sun. I always find that amazing.
Anyway, the short answer to your question is:
No!.... The further a planet is from the sun, the
longer it takes for the planet to move around the
sun. There are two reasons: Firstly, try to
imagine walking in circles around a chair in the
middle of a room. If you are very close to the
chair, you will take a short time to walk around.
Now if you move far away from the chair and walk
at the same speed, it will take you a long time to
walk a circle around the chair. This is the same
for planets moving around the sun. The further
away, the longer you have to go. In addition to
that, planets that are farther away from the sun
and have longer to go also revolve at a slower
speed than the planets close to the Earth. Those
two facts together cause a planet that is far from
the sun to take much longer to
revolve around the sun than planets close by.
Thus for example Jupiter takes nearly 12 years to
go around the sun and Pluto takes 248 years. On
the other hand, Mercury (the closest planet to the
sun) takes only 88 days to revolve around the
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