A spike in the number of very hot days in Midwestern and Eastern U.S. cities--possibly three times as many--is one of the likely public health impacts of climate change, according to a new scientific analysis. Read more
INFOGRAPHIC OF THE WEEK
Childbirth is more admirable than conquest, more amazing than self-defense, and as courageous as either one.
- SLICE OF HISTORY
After returning from a vacation, Scottish scientist Alexander Fleming spots something odd in one of the dirty Petri dishes he had stacked in a tray filled with Lysol before he went away. In that dish, Fleming sees that not only had mold grown, but that it also killed the bacteria that had been in the dish. It’s identified as the Penicillium mold so Fleming calls the “mold juice” that attacked the bacteria “penicillin.” Get the full story.