On this week’s show: Tracing the Zika virus’ entry into South America and a roundup of daily news stories.

On this week’s show: A new potential model for the spread of cancer and a roundup of daily news stories.

On this week’s show: Shrinking pharmaceutical factories and a roundup of daily news stories.

On this week’s show: A mysterious battle in Germany circa 1250 B.C.E. and a daily news roundup

On this week’s show: A look at Pluto’s tiny moons and a daily news roundup

On this week’s show: The clues left behind after a nuclear bomb detonates and a daily news roundup

On this week’s show: Building displays for soft robots and a daily news roundup

On this week’s show: How the United States can get tastier H2O from the tap and a daily news roundup

On this week’s show: The role of the microbiome in growing kids and a daily news roundup

On this week’s show: Linking Neanderthal ancestry to smoking and depression and a daily news roundup