Archaeologists in Peru have found evidence showing how the oldest known civilization in the Americas adapted and survived a climate catastrophe. About 4,200 years ago severe drought forced the population to leave the ancient city of Caral and resettle nearby.
A project to restore coastal wetland leads to astonishing discoveries of a host of life: seeds and plant scraps, as well as water fleas, worms, larvae, and plankton.
A million-year-old human skull suggests that the origins of modern humans may reach back far deeper in time than previously thought and raises the possibility that Homo sapiens first emerged outside Africa.
NASA’s Perseverance rover has identified a potential sign of past life on Mars — not a definitive detection, but perhaps the most compelling hint yet. A rock found on Mars last year continues to show signs consistent with past microbial life.
