The lunar surface has seen dramatic changes throughout its existence, but it may have looked a bit familiar beginning about 3.8 billion years ago. ...read more
Scientists collected tens of thousands of plant fossils across Colombia — and found that the same asteroid strike that killed off the dinosaurs likely helped create modern South American rainforests. ...read more
For many of us, the urge to reach for food when we're stressed can be almost impossible to resist. But neuroscience suggests it goes much deeper than a lack of willpower. ...read more