Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. Trees depicted in ...

Walk into any contemporary gallery in Las Vegas, and you'll likely encounter a canvas splashed with colors that seem to defy logic. No recognizable shapes. No obvious subject. Just pure, raw visual ...

What makes a tree a tree? Or rather, why can we recognize trees in even quite abstract depictions when they are so varied in nature? Researchers have found a clue in the branches, and used math to ...