Damar Hamlin collapsed after making a routine tackle in a NFL game Monday, and some speculate commotio cordis might be the culprit. ...read more
A selection of some the most compelling remote sensing images from the year gone by, part 2. ...read more
Dragons may have entered the human imagination through the fossil record. ...read more
Methane is a much more devastating greenhouse gas than carbon dioxide. Finding those who leak it into the atmosphere is about to get easier. ...read more