Researchers found a hidden mathematical rule in tree-like art. Branch thickness follows a predictable ratio, making trees recognizable.

It wasn’t an obvious day to climb the Eiffel Tower. It was the end of November, 1989. Overcast and cold, with clouds obscuring the city. Anita Hansen, then in her early 20s, was studying French at ...

These low-maintenance. hard to kill houseplants will thrive in your space, no matter what, even if you don't have a green ...