The kidneys: what do they do? Today Erika taught a Kidneys 101 course in honor of National Kidney Month. Add some news and Tucson vinyl records and that sums up today’s TWHAB.

This week on the show: finding axions, sacred pools, curing hemophilia, sound sensing fabric, unlocking the physics behind a universal childhood experience, a new sabretooth cat, solar flares: arch or illusion? And unravelling the mystery of earth”s (former) nearest black