On a bright, clear day, the sky stretches above us in a brilliant shade of blue. But have you ever wondered why? The answer lies in a fascinating phenomenon known as Rayleigh scattering ...

NASA astronauts Butch Wilmore and Suni Williams returned to Earth after nine months stranded in space and were greeted by a ...

Elsa Pataky and a friend soak up the sun on the pool terrace at the Hemsworth's Byron Bay mansion The blue sky and ocean appear to go on forever while the greenery from the trees adds more ...