The atmosphere is mainly composed of Carbon Dioxide (96%), 3.5% nitrogen, and less than 1% is composed of carbon monoxide, argon, sulfur dioxide and water vapor.
Venus's atmosphere is very hot and dense
The Venusian atmosphere is crossed by occasional electrical phenomena of remarkable energy
The presence of a dense atmosphere and particularly strong winds causes the surface temperature to be approximately 710-740 K throughout the planet
The atmospheric pressure on the surface reaches the value of 90 atmospheres.