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    Mercury (planet) - Wikipedia

    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 … See more

    The ancients knew Mercury by different names depending on whether it was an evening star or a morning star. By about 350 BC, the See more

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    Observation history image
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    Mercury's apparent magnitude is calculated to vary between −2.48 (brighter than Sirius) around superior conjunction and +7.25 (below the limit of naked-eye visibility) around inferior conjunction. The mean apparent magnitude is 0.23 while the standard … See more

    Orbit, rotation, and longitude image
    Overview image

    Mercury is one of four terrestrial planets in the Solar System, which means it is a rocky body like Earth. It is the smallest planet in the Solar System, with an equatorial See more

    Mercury has the most eccentric orbit of all the planets in the Solar System; its eccentricity is 0.21 with its distance from the Sun ranging from 46,000,000 to 70,000,000 km … See more

    Ancient astronomers
    The earliest known recorded observations of Mercury are from the MUL.APIN tablets. These … See more

    Atlas of Mercury. NASA. 1978. SP-423.
    Mercury nomenclature and map with feature names from the USGS/IAU Gazetteer of Planetary Nomenclature
    Equirectangular map of Mercury Archived May 20, 2016, at the Wayback Machine by Applied Coherent … See more

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  2. Mercury | Facts, Color, Size, & Symbol | Britannica

    WEB23 Apr 2024 · Mercury, the innermost planet of the solar system and the eighth in size and mass. Its closeness to the Sun and its smallness

  3. Mercury - NASA Science

  4. Mercury: The Solar System's smallest planet may once have been …

  5. Mercury Facts - Interesting Facts about Planet Mercury - Space Facts

  6. Mercury: Facts - NASA Science

  7. Mercury: A complete guide to the closest planet to the sun

  8. All About Mercury | NASA Space Place – NASA Science for Kids

  9. Planet Mercury | Natural History Museum

    WEBLearn about Mercury, the smallest and fastest planet in our solar system, with a surface of craters and a thin atmosphere. Find out how it orbits the Sun, how hot and cold it is, and why it has no moons.

  10. Mercury (element) - Wikipedia

    WEBMercury is a chemical element; it has symbol Hg and atomic number 80. It is also known as quicksilver and was formerly named hydrargyrum (/ h aɪ ˈ d r ɑːr dʒ ər ə m / hy-DRAR-jər-əm) from the Greek words hydor (water) …