Fire season has only just begun, and wildfires have already burned a record number of acres. Why they’ve been so bad, and the toll so far.
Volcanologist Kayla Iacovino studies the crystals and gases formed inside of volcanoes to figure out what causes eruptions.
As President Trump promises a vaccine before the election, some of the largest pharmaceutical companies plan to keep politics out of science.
Researchers find public health measures likely stopped a second wave of disease under impossible circumstances.