World’s oldest fossil micrometeorites ever found contain hints of oxygen in early Earth’s atmosphere

From ABC Science, 12 May 2016: The oldest fossils of cosmic dust ever discovered provide a glimpse into atmospheric conditions above the Earth more than 2.7 billion years ago and could do the same on other planets. A group of Australian and British researchers uncovered the micrometeorites — which are barely the width of a Continue reading World’s oldest fossil micrometeorites ever found contain hints of oxygen in early Earth’s atmosphere