Wet Venus?

Porfiry writes "Researchers at Washington University in St. Louis, studying hydrous mineral decomposition rates at extreme temperatures, have concluded that hot and dry Venus may have been a wet planet in the past, like Earth and ancient Mars. The new evidence suggesting a wetter Venusian history comes from a series of experiments documenting the chemical stability of tremolite, a mineral that forms in the presence of water." This is a little bit similar to the Venus article we just posted, but still interesting.