Here’s what we know so far about a new virus detected in eastern China.

Several mechanisms contribute to the increased transmissibility of this SARS-CoV-2 variant.

Multiple lines of evidence contradict the idea that the disease came to Europe via trans-Atlantic exchange.

Tumors contain thousands of genetic changes, but only a few are actually cancer-causing. A quicker way to identify these driver mutations could lead to more targeted cancer treatments.

Researchers have long suspected that an ingredient in sunscreen called oxybenzone was harming corals, but no one knew how. A new study shows how corals turn oxybenzone into a sunlight-activated toxin.

The growing season on the tundra is starting earlier as the planet warms, but the plants aren’t sequestering more carbon, a new study finds.