Venus approaches the Sun in a 2012 transit visible from Earth. Credit: NASA
A team of researchers with NASA, Uppsala University, Columbia University and the Planetary Science Institute has created several simulations of conditions on Venus billions of years ago using Earth climate models and has found some instances that suggest the planet may at one time have been capable of harboring life.
Venus is extraordinarily hot, volcanically active and has an atmosphere that is mostly carbon dioxide. But the simulations created by the research team suggest it may not have always been that way. They started with the idea that Venus and Earth were probably similar billions of years ago—a time when Earth’s atmosphere was also mostly carbon dioxide...
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