Around 540 million years ago, Earth’s biosphere underwent a pivotal transformation, shifting from a microbe-dominated world to one teeming with animal life, as nearly all major animal phyla appeared abruptly […]
Great Ordovician Biodiversification Event
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Earth May Have Had A Ring System 466 Million Years Ago
In a discovery that challenges our understanding of Earth’s ancient history, researchers have found evidence suggesting that Earth may have had a ring system, which formed around 466 million years […]
![Pyrite sulfur δ34S values as a function of the natural logarithm of pore water sulfate concentration (r2 = 0.52). Colors correspond to TOC concentration. The solid black line is the line of best fit, with the equation y = −8.4ln([SO4]) − 3.4. The two dashed black lines are parallel to the line of best fit and run 20 ‰ above it and 16 ‰ below it. -- Johns Hopkins University](https://i0.wp.com/astrobiology.com/wp-content/uploads/2024/06/An-Unlikely-Hero-In.png?resize=1200%2C720&ssl=1)
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An Unlikely Hero In The Evolution Of Life On Earth: Worms
One of Earth’s most consequential bursts of biodiversity—a 30-million-year period of explosive evolutionary changes spawning innumerable new species—may have the most modest of creatures to thank for the vital stage […]