Needless to say, these early missions unveiled a world that could not have been more different from the lush oasis some had hoped Venus might be. The Venera series, along with select Mariner probes, revealed instead a raging inferno, with surface temperatures of around 467 Celsius (872 degrees Fahrenheit), hot enough to melt lead, and pressures equivalent to the seafloor at a depth of one kilometer.
Electrically charged droplets of sulfuric acid circulate through the suffocating clouds, while a phenomenon called super-rotation whips the upper atmosphere into a vicious global hurricane that sweeps around the planet every four Earth days, with winds of 400 kilometers (250 miles) per hour.
The system uses photonic propulsion to move forward
je cherchais un truc comme ça de longue !