Two slow-motion earthquakes took several weeks to travel 20 miles along the fault. Each happened in places where geologic fluid pressures were higher.

Slow-motion earthquakes, as you might guess from the name, involve the release of pent-up geological energy over the course of days or weeks rather than minutes – and scientists have now ...

But Federer, as he himself put it, “Finally found a way. Had a good start to the second set and eventually it became easier.” When he takes on Tennys Sandgren, a 28-year-old from Tennessee, on Tuesday ...

Djokovic even joked that it might be the first match he's won with Federer in attendance. Federer laughed and nodded at that remark. "Good to break the curse," Djokovic quipped.