Did Venus Once Harbor Life?

Many astronomers believe that Venus was once inhabited by life. Some believe that life might even exist today high in Venus's clouds. 

Scientists are now reproducing the environment of Venus so that they can better understand the climate systems of Earth and the habitability of rocky planets. Scientists are able to learn about the atmospheres and surfaces of planets by studying their spectra - the different wavelengths of light which they reflect or absorb. However, when researchers study spectra of Venus, the hottest planet in the solar system, they run into a problem. Its high temperatures and pressures seriously affect the data... Read More