Composition:
* Carbon dioxide (CO2): Makes up 96.5% of the atmosphere, creating a powerful greenhouse effect.
* Nitrogen (N2): Makes up 3.5% of the atmosphere.
* Trace amounts: Sulfur dioxide (SO2), water vapor (H2O), argon (Ar), and others.
Temperature:
* Extremely hot: The surface temperature averages a scorching 464°C (867°F), making it the hottest planet in our solar system.
* Runaway greenhouse effect: The dense CO2 atmosphere traps heat from the sun, leading to the extreme temperatures.
Pressure:
* Crushing: The surface pressure is 92 times that of Earth's, equivalent to being about 900 meters (3,000 feet) underwater.
Clouds:
* Sulfuric acid (H2SO4) clouds: These thick, opaque clouds cover the entire planet and reflect sunlight, making Venus appear bright in the sky.
* Acid rain: While the rain never reaches the surface due to the extreme heat, it evaporates before it can fall.
Wind:
* Slow but powerful: The winds at the surface are relatively slow, but the high atmospheric pressure means they can exert a strong force.
* Super-rotation: The upper atmosphere rotates much faster than the planet itself, completing a full rotation in just four days.
Other characteristics:
* No magnetic field: Venus lacks a significant magnetic field, leaving it vulnerable to the solar wind.
* Low water content: The atmosphere contains very little water vapor.
The extreme conditions on Venus make it an incredibly hostile environment for humans or even most known life forms.
