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Breakthroughs in pure mathematics can take decades. A new Defense Department initiative aims to speed things up using artificial intelligence.

The Starship experienced a "major anomaly" before starting its 10th flight test. Elon Musk's giant moon and Mars rocket has a mixed record of success.

Limits on travel and visa appointments have delayed or prevented foreign doctors from entering the country for jobs set to begin in weeks.

The drug could change the course of the AIDS epidemic. But the Trump administration has gutted the programs that might have paid for it in low-income countries.

Fifteen years after the discovery of a new type of human, the Denisovan, scientists discovered its DNA in a fossilized skull. The key? Tooth plaque.

Researchers found children with highly addictive use of phones, video games or social media were two to three times as likely to have thoughts of suicide or to harm themselves.

A new study suggests that these Australian insects may be the first invertebrates to use the night sky as a compass during migration.

About 70,000 years ago in Africa, humans expanded into more extreme environments, a new study finds, setting the stage for our global migration.

Dr. Fiona Havers is influential among researchers who study immunizations. The wholesale dismissal of the agency's scientific advisers crossed the line, she said.

The company, xAI, has installed several dozen turbines in Memphis without proper permits, the group said, polluting a nearby community.