Mercury
Mercury is the closest planet and to the sun and to the eighth largest. Mercury is slightly smaller in diameter than themoons Ganymede and titan ,but More than twice as
massive. Temperatures on Mercury's surface can reach 800 degrees Fahrenheit (43 Degrees Celsius). Because the planet has no atmosphere to retain that heat, nighttime temperatures on the surface can drop to -280 degrees Fahrenheit (-170 degrees Celsius). Mercury goes around the sun so fast ,that is was named after the messenger of the roman gods. The messenger Mercury, or Hermes as the Greeks knew him, is usually shown as having wings on his helmet or on his sandals.
massive. Temperatures on Mercury's surface can reach 800 degrees Fahrenheit (43 Degrees Celsius). Because the planet has no atmosphere to retain that heat, nighttime temperatures on the surface can drop to -280 degrees Fahrenheit (-170 degrees Celsius). Mercury goes around the sun so fast ,that is was named after the messenger of the roman gods. The messenger Mercury, or Hermes as the Greeks knew him, is usually shown as having wings on his helmet or on his sandals.