Why natural killer cells react to COVID-19

Little has been known to date about how the immune system’s natural killer (NK) cells detect which cells have been infected with SARS-CoV-2. Scientists now show that NK cells respond to a certain peptide on the surface of infected cells. The study is a…

Tracking the pulse of America’s rivers

Researchers are using modern sensor technology to automatically track oxygen levels and other stream vital signs 24/7, through changing seasons, floods and droughts. In a new study, researchers analyzed at least a year’s worth of data from 222 rivers a…

Molecule snapshot by explosion

An international team of scientists has taken a snapshot of a cyclic molecule using a novel imaging method. Researchers used the world’s largest X-ray laser to explode the molecule iodopyridine in order to construct an image of the intact molecule from…