1. Mercury Facts - Science@NASA

    https://science.nasa.gov/mercury/facts/

    Learn about Mercury's namesake, size, orbit, rotation, surface, atmosphere, and magnetosphere. Find out why Mercury is the hottest and coldest planet, and how it differs from Earth and other planets.

  2. Mercury - NASA Science

    https://science.nasa.gov/mercury/

    Learn about Mercury, the smallest and fastest planet in our solar system, with no moons or rings. See images of its cratered surface, explore its atmosphere and history, and find out why it is not the hottest planet.

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

    https://www.britannica.com/place/Mercury-planet

    Learn about Mercury, the smallest and fastest planet in the solar system, from Britannica. Find out its history, orbit, surface, temperature, moons, and how it was explored by Messenger and BepiColombo probes.

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

    https://spaceplace.nasa.gov/all-about-mercury/en/

    Learn about Mercury, the smallest and fastest planet in our solar system. Find out how it looks, how it spins, what it is made of, and why it is so extreme.

  5. 55 Interesting Facts About Mercury - The Fact File

    https://thefactfile.org/mercury-facts/

    Learn about Mercury, the smallest and fastest planet in the solar system, with these facts. Discover its name, orbit, temperature, core, surface, and more.

  6. Planet Mercury, explained - National Geographic

    https://www.nationalgeographic.com/science/article/mercury

    Learn about the smallest, fastest, and most elusive planet in our solar system. Find out how Mercury was formed, what its surface looks like, and what missions have explored it.

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

    https://www.space.com/36-mercury-the-suns-closest-planetary-neighbor.html

    Learn about Mercury's size, temperature, surface, magnetic field, atmosphere, orbit and more. Find out how Mercury shrinks, craters, volcanoes and quakes on this small and cratered world.

  8. Solar System Tour - Mercury - NASA

    https://science.gsfc.nasa.gov/690/solar-system-tour/Mercury.html

    Learn about Mercury, the smallest and fastest planet in our solar system. Find out its surface features, magnetic field, temperature extremes, and missions by NASA.