The recommended age for starting colorectal cancer screening is now 45. That shift may explain a rise in early cases.

A mysterious disease has been turning sea stars into goo since 2013. Now, there’s a leading suspect behind the killings — a bacterium called Vibrio pectenicida, researchers report August 4 in Nature ...

The superclouds probably produce star-forming clouds of gas, since most nearby stellar nurseries are located within the giants.