Michael Reynolds builds off-grid homes out of garbage. Meet the Earthship.

We talk about three cutting-edge CubesSat missions, MarCO, Near-Earth Asteroid Scout, and Lunar Flashlight, and how this satellite technology evolved from university laboratories to deep space.

From toilets to toothbrush holders, bioethicist and journalist Elizabeth Yuko explains how infectious diseases like tuberculosis and influenza have shaped American bathroom design.