Venus

Venus is the second closest planet to the Sun. Nicknamed the Earth's sister planet due to its size that is similar to Earth's. It is a telluric planet just like the Earth, Mercury and Mars.

Venus' main characteristic is a dense atmosphere covered by a thick layer of opaque and highly reflective clouds. These clouds have long prevented man from seeing any detail of the planet's surface; it was fully mapped only in the last 20 years with the Venera program.