Do you have blue eyes? We talked to experts to discover curious facts about baby blues, including whether your biological family is bigger than you ever imagined.

Straining blocks clarity. The harder we force things, the more we limit creativity, connection, and insight. Wu-wei is the ...

Our brain and eyes can play tricks on us—not least when it comes to the expanding hole illusion. A new computational model ...

Today’s optical illusion is challenging viewers to find a hidden "5" among a sea of "2s." The tricky pattern plays with human perception, making it hard to spot the odd number. Can you find it?

Our ancestors had to rely on their vision to find safe, nutritious food, but today, we’re surrounded by so much literal eye ...