OpenAI CEO Sam Altman has met with Sen. Bernie Sanders to discuss public ownership in AI companies — a meeting that highlighted the tension between AI powerhouses and policymakers

President Donald Trump is calling for the U.S. military and national security agencies to accelerate their use of artificial intelligence

The Energy Department says a small nuclear reactor under development at a national lab has reached a crucial milestone that could allow it to produce electricity in the next few years

S&P 500 sinks 2.6% for biggest drop since October as tech stocks slump and investors worry about higher interest rates

Astronauts aboard the International Space Station have briefly taken shelter during a repair to fix a new leak

Anthropic is proposing that top AI companies coordinate a way to pause the development of advanced AI systems if they become too dangerous

The U.N. nuclear watchdog has been unable to inspect nuclear facilities in Iran affected by the war last June, according to a confidential report by the U.N. nuclear watchdog

A new study finds that smoke from larger wildfires is reversing more than a decade of American improvements in smog

The Supreme Court has sided with the Trump administration in a case about the power of federal regulators over telecommunications companies