NPR's Scott Detrow talks with Regina Barber and Nell Greenfieldboyce about the Artemis moon missions, the "seismic quiet" during a solar eclipse, and the origins of a mysterious interstellar visitor.

Christopher Nolan's 2014 sci-fi film Interstellar was adventurous, philosophical, and poetic, and it was a story that came with a warning. One of the most profound moments in Interstellar is a scene ...