The document provides information about two planets in our solar system - Mercury and Venus. Mercury is the closest planet to the sun with a diameter of 4.879 km and orbits at a distance of 57.91 million km. Venus is larger than Mercury with a diameter of 12.104 km and orbits the sun from a distance of 108.2 million km. Both planets are described as rocky.

1. The Solar System
By [Name of the Authors]

2. Mercury
Diameter: 4.879 km
Distance to the Sun: 57,91 millon km
Rocky planet

3. Venus
Diameter: 12.104 km
Distance to the Sun: 108,2 million km
Rocky planet