united states

Nearly 119,000 birds have been culled at a farm in California after a bird flu called H5N9 was detected among the poultry.

The conditions needed to create thunderstorms are very rare, and can be dangerous, meteorologists warn.

A new study has revealed that cervical cancer deaths have strongly declined in the U.S. since 2016, likely due to increased rates of HPV vaccination.

The CDC has issued a new health alert as global cases of dengue fever soar.

About 500 more people died from drowning each year between 2020 and 2022 than did in 2019, the CDC reports.

Earlier this month, a sudden atmospheric warming event caused the Arctic's polar vortex to reverse its trajectory. The swirling ring of cold air is now spinning in the wrong direction, which has triggered a record-breaking "ozone spike" and could impact global weather patterns.

Scientists spotted a gray whale — believed to be extinct in the Atlantic Ocean — while conducting an aerial survey.

The newly uncovered gene variants were identified as part of an analysis of the DNA of more than 400,000 people in the U.S. who agreed to participate in the All of Us Research Program.

A new study shows that invasive Joro spiders are surprisingly "urban tolerant," which could enable them to take over cities and other urban areas across the U.S. East Coast.

On April 8, 2024, more than 31 million people in North America will witness a total solar eclipse, around a third of them in just 10 cities.