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Artificial intelligence on the agenda for President Trump's upcoming meeting with Chinese President Xi Jinping.

We unpack one of the biggest economic buzzwords of 2025: What is a "K-shaped' economy?

China's "Tianhe-2" (Milky Way 2) supercomputer took first place in one recent speed test, clocking in at 30 quadrillion calculations per second--about twice as fast as the best American machines. The U.S. still has more supercomputers than any other nation, but some experts say computer speed is a measure of a country's scientific innovation, and worry the U.S. is lagging behind.

When Stanford professor Andrew Ng put one of his classes online, more than 100,000 students signed up. Now he's co-founded a company, Coursera, with the potential to give millions of students free access to classes from Stanford, Princeton, the University of Pennsylvania and other schools.

The bidding period has closed for the companies hoping to design and deliver the president's signature campaign promise. Here's a glimpse of some proposals — from wire mesh to 30-foot pipe organs.

Disputes over immigration and food stamps doomed the measure. Every Democrat and 30 Republicans voted against the bill.

Amazon is working on a whittled-down list of cities where it might build the second headquarters. Among the bidders, Washington, D.C., stands out for competing against two of its next-door neighbors.

Sakshi Satpathy, 16, babysat and walked dogs to finance her films on child marriage and trafficking. She's won the Girl Scout's top honor — and Amnesty International and CARE have screened her works.

Females make up less than 30 percent of the the country's labor force. But one nonprofit is providing restaurant and cooking training to vulnerable women who have been shut out by Moroccan society.

A new study by three media scholars reveals how the social protest movement spread on Twitter, with some fascinating — and sobering — findings.