Hundreds of millions of years before oxygen surged in the atmosphere 2.4 billion years ago, swaths of oxygen winked in and out of existence in the ocean.

Kosmos 482 launched for Venus in 1972 but never left Earth orbit. The spacecraft has now lost enough energy that it can’t fight gravity anymore.

Implanted tubes that transport bodily fluids can get gross. A lab prototype suggests a new vibration-based way to keep them clean and prevent infection.

Rosettes made by scraping Tête de Moine, or “monk’s head,” cheese result from variations in the friction between the blade and the cheese.

Shape matters as well as size in the great range of male frog show-off equipment for competitive seductive serenades.

The porpoise is critically endangered. Ancient Chinese poems reveal the animal’s range has dropped about 65 percent over the past 1,400 years.

A new antivenom relies on antibodies from the blood of Tim Friede, who immunized himself against snakebites by injecting increasing doses of venom into his body.

SAMHSA’s work is crucial to suicide and drug overdose prevention and mental health care. It may fall victim to changes to public health infrastructure.

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A tailor-made version of Minecraft let researchers look at the success of learning individually or taking cues from others while foraging for fruit.

In their new book, Lydia Kang and Nate Pedersen survey flat Earth theory, fake moon landings and other scientific myths and why people believe them.

An initial clinical trial in Kenya found no safety concerns, a first step toward testing unithiol as a treatment for venomous snakebites in people.