Recovering South Korean shopaholic-turned-climate activist Lee So-yeon used to buy new clothes almost daily -- until a $1.50 ...

They were dug out by debris sent violently aloft when an asteroid or comet struck the lunar surface 3.8 billion years ago.

The Grand Canyon in Arizona is one of Earth's natural wonders, carved out over millions of years by the gradual erosion power ...

Five households in the immediate vicinity of a massive, ever-widening sinkhole near Tokyo were urged to evacuate Sunday, with ...