Next On The Endangered List: Helium?

Next On The Endangered List: Helium?

Are we running out of helium? Lee Sobotka, professor of chemistry and physics at Washington University in St. Louis, says it is being depleted so rapidly in the world’s largest reserve, outside of…
Making Cavity-Causing Bacteria 'Self-Destruct'

Making Cavity-Causing Bacteria 'Self-Destruct'

Bacteria that eat sugar and release cavity-causing acid onto teeth may soon be made dramatically more vulnerable to their own acid. Researchers have identified key genes and proteins that, if…