“Most people think the rise of oxygen was linked to cyanobacteria, and they are not wrong,” said James Eguchi, a NASA postdoctoral fellow at the University of California, Riverside who led a new study suggesting that the first burst of oxygen was added by a spate of volcanic eruptions brought about by tectonics. “The emergence of photosynthetic organisms could release oxygen. But the most important question is whether the timing of that emergence lines up with the timing of the Great Oxidation Event. As it turns out, they do not.”
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The Search for Axions – “Detection Will Have Profound Implications”
Will We Image Planet Nine Within the Next Decade? 
NASA Scientists: On What the Perseverance Mars’ Rocks Return Samples Could Tell Us
Physicist Who Denies that Dark Matter Exists to What if Other Human Species Hadn’t Died Out –Planet Earth Report
In Search of Dark Energy –Probing 11-Billion Years of Cosmic History
Primordial Object the Age of the Universe to Jupiter’s Metallic Oceans –Last Week’s Top 5 Space & Science Headlines
Moore’s Law– Homo Sapiens May be the Milky Way’s First Intelligent Civilization
Does Any Civilization in the Universe Survive Climate Change to Stephen Hawking’s ‘Lost’ Nobel Prize
Colossal Cosmic Cold Front –Survived Over 1/3 the Age of the Universe (Weekend Feature)