Are you curious to learn some weird and wonderful facts about Mercury?
If so, excellent! You are in exactly the right place my friend…
It’s time to chat about Mercury facts.
Let’s dive right in…
Facts About Mercury
1- Mercury is the smallest planet in our solar system.
2 – It’s also the densest planet, with a density of 5.43 g/cm3.
3 – The surface temperature on mercury ranges from -173°C to 427°F.
4 – Mercury has no moons or rings.
5 – There is no evidence of any life forms on Mercury because it’s too hot for liquid water and there isn’t an ozone layer for protection against ultraviolet radiation.
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6 – It’s also the closest to the sun, orbiting at an average distance of 46 million miles from it.
7 – It takes 88 days for mercury to orbit around the sun.
8 – The atmosphere on mercury consists of a thin layer of molecules that are mostly hydrogen gas and helium. Its color comes from sulfur compounds – when sunlight hits these compounds they turn into yellowish-brown dust particles called tholin.
9 – There are no seasons on mercury because of its slow rotation and tilt (it doesn’t have an axial tilt).
10 – Mercury’s magnetic field is less than 1% as strong as Earth’s.
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11 – Mercury has been explored by only two space missions, Mariner 10 in 1974-1975 and MESSENGER from 2008-2015.
12 – The surface of mercury is covered with craters from when it was hit by asteroids and comets.
13 – There have been many probes sent to explore Mercury but none have landed yet because its gravity is too weak to hold them down.
14 – Many of the elements found on Mercury were discovered there before they were found on Earth.
15 – Scientists think there might be ice in craters near Mercury’s poles and some water vapor in its thin atmosphere.
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16 – It orbits the sun at an average distance of 57 million km (36 million mi), and completes three rotations during this orbit.
17 – It’s about 4,880 kilometers in diameter and has a mass of 3.3×1023 kg.
18 – It has no moons or rings, but one large crater on its surface called Caloris Basin. The surface of mercury is scarred with craters caused by impacts from asteroids, comets, and meteorites over billions of years.
19 – Mercury can’t be seen from earth without a telescope because it’s so close to the sun.
20 – It’s about three-fifths the size of earth.
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21 – There are many minerals on Mercury’s surface including iron oxide (rust), calcium-sulfate (gypsum), potassium-magnesium silicate (basalt).
22 – Mercury rotates so slowly that it appears to be “standing still” from Earth’s perspective.
23 – It takes about 3 weeks for light from the sun to reach Mercury.
24 – The space probe “Mariner 10” mapped most of Mercury’s surface and discovered many craters caused by asteroids crashing into it long ago.
25 – Mercury’s day lasts just over 59 Earth days, while its year lasts 88 Earth years.
