Elon Musk has seen his net worth increase enough over the past 12 months to jump to the top of Forbes' annual Billionaires ...

There are now more than 3,000 billionaires in the world, according to Forbes' annual ranking of the wealthiest people. They ...

A measles case has been confirmed in an unvaccinated adult who recently traveled internationally, according to Colorado health officials, the first measles case in the state in years as an outbreak of ...

The billionaires club has never been bigger—or richer. Here’s who’s up, who’s down, who’s off the list and why it matters ...