Hazy Shades of Life On Early Earth
― A 'see-sawing' atmosphere over 2.5 billion years ago preceded the oxygenation of our planet and the development of complex life on Earth, a new study has shown. ∙ Research, led by experts at Newcastle University, UK, and published March 18 in the journal Nature Geoscience, reveals that Earth's early atmosphere periodically flipped from a hydrocarbon-free state into a hydrocarbon-rich state similar to that of Saturn's moon, Titan. ∙ This switch between "organic haze" and a [...].
