Uma Raja is the science-technology reporter for the South Florida Sun Sentinel. She covers artificial intelligence, cybersecurity, rockets, emerging medical technologies and environmental issues.

A federal judge has ordered the Trump administration to temporarily lift funding freeze shutting down U.S. humanitarian aid ...

What’s the difference between racing the Daytona 500 and Indy 500? Drivers who have tried both explain. February 14, 2025 at 11:59 a.m.

On both sides of the political aisle, very few U.S. adults think the country is spending too much on Social Security and ...