When a virus enters the lungs, the immune system has to react fast. The lung maintains its own community of immune cells ...

Scientists have found that your brain separates memories into “what” and “where/when” using two different groups of neurons. One set responds to specific objects or people, while another tracks the ...

Penn Engineers have redesigned a key component of lipid nanoparticles (LNPs), the delivery vehicles behind mRNA vaccines, to ...