Five years ago, Facebook gave its users five new ways to react to a post in their news feed beyond the iconic “like” thumbs-up: “love,” “haha,” “wow,” “sad” and “angry.” Behind the scenes, Facebook ...

Facebook reportedly sparked internal concern and debate after tweaking its algorithm to make reactions — including anger — five times more important than "likes." From our morning news briefing to a ...

Optical illusions have become the new fixation of the internet. The brain-teasers play tricks on our eyes and reveal how our brain processes images. These optical illusions challenge viewers to put ...