Today's tricky optical illusion challenges viewers to spot a hidden green apple among a basket full of guavas. This visual ...

Here’s how it works. Space can be a wondrous place, and we've got the pictures to prove it! Take a look at our favorite space pictures here, and if you're wondering what happened to today in ...

But did you also know that the brain has an amazing ability to adapt and grow new neural pathways at any age? This is called ...