A nanoparticle-based vaccine candidate for H5N1 avian influenza achieved 100% protection in preclinical trials, offering hope ...

From spinning with the Harlem Globetrotters to signing a Harley-Davidson, here are 10 memorable moments from Pope Francis' ...

Pope Francis charmed the world with those poignant acts of love, humility and informality, starting with his first appearance as pontiff on the loggia of St. Peter’s Basilica with a remarkably normal, ...