What is the surface gravity like on Mercury
compared to Earth?
Answer: The surface gravity on Mercury is
0.38 times the surface gravity here on Earth. That means you would
feel a lot lighter there than you would at home.
How come Mercury; the closet planet from the
sun, is freezing cold at night whilst it isn't very cold at night
here on Earth?
LUCY, AGE 8
Answer: The Earth
has a thick atmosphere (shell of gas around the planet) while Mercury
doesn't have a very thick atmosphere. The
Earth isn't as cold as Mercury because the atmosphere keeps it from
cooling down too much.
Does the planet Mercury emit light or reflect
ASHLEIGH, AGE 11
Answer: We can see
the planets in our Solar System because they all reflect light from
the Sun. Unlike all the stars we can see in the sky which give off
their own light just like the Sun.
What is the circumference and composition of
Mercury? Also the temperature during day and night?
Answer: Mercury is
the nearest planet to the Sun and has a circumference of about 15,300km.
It's a small rocky planet and is made up of mostly iron and nickel.
Because it is so close to the Sun, its daytime
temperature is around 430 degrees Centigrade and -170 degrees centigrade
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