The year of cosmic shock
Read More

The year of cosmic shock

President Trump jokingly posts a doctored photo of himself leading an alien in chains out of Area 51,…
The oxygen in Earth's atmosphere is essential to almost every animal alive today — but when it first started accumulating in the air roughly 2.4 billion years ago, it triggered the most lethal pollution event in the planet's history, wiping out the vast majority of species alive at the time, in what biologists now call the Great Oxidation Event
Read More

The oxygen in Earth’s atmosphere is essential to almost every animal alive today — but when it first started accumulating in the air roughly 2.4 billion years ago, it triggered the most lethal pollution event in the planet’s history, wiping out the vast majority of species alive at the time, in what biologists now call the Great Oxidation Event

Roughly 2.4 billion years ago, the atmosphere of the Earth underwent the most consequential chemical change in the…