Posts Tagged ‘Oxygen’

600 million-year-old fossils reveal catastrophic oxygen loss on ancient Earth [Evolution]

17 Feb
635 million years ago, almost the entire planet was a frozen ball of ice. And yet mere tens of millions of years later a population explosion happened deep underwater in South China, preceding the better-known Cambrian explosion by a significant time period. In these oxygen-free waters, more than 3,000 fossils of 15 species of seaweeds and worms lived briefly, and then all died suddenly. More »

Saturn’s moon Rhea may have a breathable atmosphere [Future Space Colony]

25 Nov
Saturn's icy moon Rhea has an oxygen and carbon dioxide atmosphere that is very similar to Earth's. Even better, the carbon dioxide suggests there's life - and that possibly humans could breathe the air. More »