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  1. Mercury Facts - Science@NASA

    Apr 25, 2025 · Mercury is the smallest planet in our solar system and nearest to the Sun. It's only slightly larger than Earth's Moon. From the surface of Mercury, the Sun would appear more than three times …

  2. Basic Information about Mercury - US EPA

    Nov 21, 2025 · Elemental or metallic mercury is a shiny, silver-white metal, historically referred to as quicksilver, and is liquid at room temperature. It is used in older thermometers, fluorescent light bulbs …

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

    Apr 17, 2026 · 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 …

  4. Mercury (planet) - Wikipedia

    Mercury is a classical planet that has been observed and recognized throughout history as a planet (or wandering star). In English, it is named after the ancient Roman god Mercurius (Mercury), god of …

  5. Mercury | Missouri Department of Natural Resources

    Mercury is a naturally occurring element found in rocks, soil, air and water. For centuries, mercury's unique properties have made it an interesting and useful metal.

  6. Fun Facts About Mercury: What Does Mercury Look Like, …

    4 days ago · In this guide, you’ll find the most interesting Mercury facts (size, color, temperature, composition, moons) plus quick, practical tips for spotting Mercury in the sky.

  7. Mercury Planet Facts - Science Notes and Projects

    Mar 26, 2024 · Mercury is the closest planet to the Sun and the smallest planet in the Solar System. It gets its name for the Roman god Mercury, who was the swift messenger of the gods.

  8. Mercury facts | BBC Sky at Night Magazine

    Jun 26, 2025 · Mercury, the closest planet to the Sun and the smallest planet in the Solar System, is a desolate world. The planet has almost no atmosphere, meaning there’s no protection from the Sun’s …

  9. Mercury, world of extremes - The Planetary Society

    Mercury is the smallest planet in the Solar System and the closest one to the Sun. It's also a little-explored world, full of mystery, with a surface split into extremes and an interior that puzzles …

  10. IDEM: Community Environmental Health: What is Mercury

    Mercury is one of the 92 naturally occurring chemical "elements" that make up our physical world. Mercury has some unusual chemical and physical properties that make it a useful substance for a …