Venus - 3

Was there life on Venus? There is evidence that when it was young, Venus almost certainly had liquid water—an essential ingredient for life on Earth. Was Venus habitable in the past? Is it habitable now? Finding evidence of past life will be a big challenge, as massive volcanic activity caused a resurfacing of 80% of the planet within the last billion years. But if samples are someday returned from the ancient surface of Venus, they could be very revealing! As for life on Venus now, some scientists speculate that single-celled organisms could actually survive within the harsh yet stable atmosphere, living off the sulfur chemistry there!