Mercury is the smallest and closest planet to the Sun in our solar system. It lacks a significant atmosphere and experiences extreme temperature variations.

Facts About Mercury

  • Closest to Sun: First planet in the solar system, nearest to the Sun.
  • Extreme Temperatures: Drastic temperature differences between days and nights.
  • No Atmosphere: Virtually no atmosphere, leading to extreme temperature variations.
  • Rocky Surface: Covered in craters, cliffs, and rocky terrain.
  • Fast Orbit: Orbits the Sun in just 88 Earth days.
  • Slow Rotation: Rotates slowly, with one day equaling 59 Earth days.
  • Minimal Gravity: Gravity is only about 38% of Earth’s.
  • No Liquid Water: Water would vaporize due to the lack of atmosphere.
  • Extensive Cratering: Heavily bombarded by meteorites and comets.
  • Mercury Messenger: Studied by NASA’s Messenger spacecraft, which orbited the planet.