(IMAGE) Université de Genève Caption Artist’s view of the surface and atmosphere of early Venus, more than 4 billion years ago. In the foreground is a mysterious explorer surprised to see the oceans completely vaporised in the sky. Credit © Manchu Usage Restrictions none License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.