Alpha Regio is an example of highly deformed crust called tessera. Such areas may be the oldest surfaces on Venus. They were produced by strong geologic forces that folded the crust and created interwoven patterns of ridges and valleys.
Venus Express has spied a surprisingly cold region high in the planet’s atmosphere that may be frigid enough for carbon dioxide to freeze out as ice or snow.
But in a new analysis based on five years of observations using ESA’s Venus Express, scientists have uncovered a very chilly layer at temperatures of around –175ºC in the atmosphere 125 km above the planet’s surface.