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May 19, 2024 · Mercury, the innermost planet of the solar system and the eighth in size and mass. Its closeness to the Sun and its smallness make it the most elusive of the planets visible to the unaided eye.
- Surface Composition
Mercury - Craters, Volcanoes, Plains: Messenger used X-ray...
- Basic Astronomical Data
Mercury - Innermost Planet, Smallest, Hot: Mercury is an...
- Mercury Summary
Mercury, Innermost planet of the solar system. Its average...
- The Atmosphere
Mercury - Atmosphere, Temperature, Radiation: A planet as...
- Impact Craters
Mercury - Impact Craters: The most common topographic...
- Mariner 10, Radar, Messenger
Mercury - Mariner 10, Radar, Messenger: Scientific knowledge...
- Surface Composition
Oct 21, 2021 · Mercury is slate gray with a high iron content and little atmosphere. Learn how the colors of the other planets vary depending on their composition, atmosphere, and surface features.
Feb 22, 2013 · Learn how NASA enhanced the colors of Mercury's surface to reveal its geology and composition. See the colorful view of Mercury produced by MESSENGER's primary mission.
Mercury is the first planet from the Sun and the smallest in the Solar System. In English, it is named after the ancient Roman god Mercurius ( Mercury ), god of commerce and communication, and the messenger of the gods. Mercury is classified as a terrestrial planet, with roughly the same surface gravity as Mars.
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- Structure and Surface
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Mercury is the smallest planet in our solar system.Mercury is a terrestrial planet. It is small and rocky.Mercury has a thin exosphere.Mercury’s surface can be as hot as 800 degrees F during the daytime and as cold as -300 degrees F during the nighttime. (But Mercury is not the hottest planet in the solar system. The hottest plane...A day on Mercury lasts 59 Earth days.A year on Mercury lasts 88 Earth days.Mercury does not have any moons.Mercury is the closest planet to the Sun.Venus is Mercury’s neighboring planet.Mercury has been known since ancient times because it can be seen without advanced telescopes.Because it is so close to the Sun, Mercury is hard to study from Earth. No people have ever gone to Mercury, but two robotic spacecraft have visited. The spacecraft were called Mariner 10 and MESSE...MESSENGER mapped Mercury by taking pictures of the planet's surface, including some areas that had not been seen before. It also collected information about what the surface and insides of Mercury...Learn about Mercury, the smallest and closest planet to the Sun, with no moons and a thin exosphere. See images of Mercury's cratered surface, color differences, and history.
Feb 21, 2017 · Mercury is a bare rock planet with a dark gray surface, broken up by craters. Learn how its color comes from its molten history and how it differs from the Moon and other planets.
Mar 8, 2019 · Mercury is the smallest and closest planet to the sun, with a pure gray surface. NASA studies reveal that graphite, a form of carbon, is the main cause of the gray color, buried beneath the surface and exposed by meteor impacts.