One of the more daunting questions related to astrobiology—the search for life in the cosmos—concerns the nature of life itself. For over a century, biologists have known that life on Earth comes down ...
Smaller nucleoli slow aging, acting as a "mortality timer," while larger nucleoli lead to cell death by destabilizing rDNA. The secret to cellular youth may lie in maintaining a small nucleolus—a ...
RCW 120 is an emission nebula and it has a global magnetic field that runs parallel to the Galactic plane. NASA captured this beautiful image of Orion nebulae. This type of nebula forms when the ...