SciencefromBig Think7 months agoHow taming fire made us humanSustained surface fire has existed only for about 430 million years because fire requires a spark, abundant atmospheric oxygen, and available combustible fuel.
OMG sciencefromNature10 months agoMysterious link between Earth's magnetism and oxygen baffles scientistsEarth's magnetic field variations correlate with atmospheric oxygen levels, influencing life's evolution and potential extraterrestrial life search.