Optical Illusion: Optical illusions challenge your perception and test your observation skills with mind-bending images. They effectively enhance cognitive abilities and stimulate creative thinking.

Be it sci-fi, immigration or even artificial intelligence, the concept of aliens mirrors how we define fear, fascination and the "others" among us. What springs to mind at the mention of "alien"?

Elon Musk has set his sights on something that sounds like it belongs in a sci-fi blockbuster: turning humanity into an 'alien society'. The world's richest man often makes bold claims, but his latest ...