The circular grass creations, that look like something out of a different planet scattered throughout the Namib Desert have long been one of the mysteries of science.
Rover Curiosity, the biggest laboratory on wheels, successfully landed on the Red Planet's deepest crater called Gale and you can follow it on Twitter and Facebook as well.
First World War, also known as the World War I (WWI), was a global war centered in Europe that drew in all the world's economic great powers of that time.
