NASA-supported scientists have resurrected an enzyme first used by organisms on Earth 3.2-billion years ago and, in the ...
Nitrogen is essential for all life on Earth. In the global oceans, however, this element is scarce, and nitrogen availability is therefore critical for the growth of marine life. Some bacteria found ...
Get your binoculars: The last time this recently discovered comet was this close to the sun, Neanderthals and mammoths walked the lands. This composite image, derived from 23 two-minute exposures, ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results