What is the surface gravity like on Mercury compared to Earth?
ANON 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 light?
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?
NEHA 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 during night-time. Got a question? Send them to us here »
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