N. Fischer, H. Pfeiffer, and A. Buonanno/Max Planck Institute for Gravitational Physics/Simulating eXtreme Spacetimes (SXS) Collaboration

First up, host Sarah Crespi talks with Staff Writer Adrian Cho about new gravitational wave detections from the first half of 2019—including 37 new black hole mergers. With so many mergers now recorded, astrophysicists can do different kinds of research into things like how new pairs of black holes come to be and how often they merge.

Sarah also talks with Sarah Davidson, data curator at the Max Planck Institute of Animal Behavior, about results from an Arctic animal tracking project that includes