Americans are braving a massive heatwave to celebrate 250 years of U.S. independence in the nation's capital, where temperatures are expected to rise over 100 degrees.

Laser pulses fired from a research aircraft over Panama cut through dense tropical canopy and reached the forest floor, ...

This year’s Grand Départ continues with a 168.5km ride along the coast from Tarragona to Barcelona. Andy McGrath has the latest ...