Part 1 of this series of three articles dealt with the uses hydrogen and nitrogen found in oil refineries. Some of these uses have been around for a long time and are well known; others are newer, ...

A modified method for delivering oxygen to the whole body can restore function in pig organs one hour after the animals have died. The achievement points to ways to improve transplants and the ...

The biggest mass extinction in Earth history some 251 million years ago was preceded by elevated extinction rates before the main event and was followed by a delayed recovery that lasted for millions ...