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Diesel fuel from a 21,000-ton oil spill in the Russian Arctic has reached a freshwater lake that serves as a gateway into the Arctic Ocean, Russian officials announced.

Rice University neuroengineers have created a tiny surgical implant that can electrically stimulate the brain and nervous system without using a battery or wired power supply.

Oxygen first accumulated in the Earth’s atmosphere about 2.4 billion years ago, during the Great Oxidation Event.

Ship emissions in the southeast Atlantic help create more reflective clouds that produce a local cooling effect.

The way we measure economic health is flawed, according to new research from the Stanford-based Natural Capital Project.