The sky can produce a plethora of unique and awe-inspiring sights. One phenomenon well worth keeping a watch for often occurs ...

Crepuscular rays work in the same way. They often occur when objects such as mountain peaks or clouds partially shadow the sun's rays like a cloud cover. Various airborne compounds scatter the ...

These 'sun rays' are also known as crepuscular rays, from the Latin word for 'twilight'. It was the first time sun rays have been so clearly viewed on Mars. Curiosity, which was built by NASA's ...