Humankind was once determined to break the sound barrier, as it was considered the ultimate achievement in speed. But our technology didn't stop there, as we've built experimental vehicles that can ...

How fast can a human run 26.2 miles? The previously imponderable 2:02 was just seconds away, and the 2-hour marathon was being discussed in reverential terms once used for the 4-minute mile: A barrier ...

On a Saturday morning last month inside a hotel ballroom in Manhattan, Noah Lyles opened the calculator app on his phone and reduced the outer boundary of our species’ athletic performance to ...

The 10-second 100-meter dash. The four-minute mile. The two-hour marathon. In baseball, is the 110 mph fastball the next big number to fall? What actually is the upper limit when it comes to ...