Dr. Shohini Ghose talks about quantum entanglement, which she describes as an "amazing, weird handshake across space and time." She tells us about quantum information science, which finds useful applications for the weird quantum qualities of particles.
Dr. Burçin Mutlu-Pakdil talks about her amazing discovery-- a galaxy with both an inner and outer ring. The existence of such a galaxy had not been predicted before she discovered it, and there's no theory yet that can explain how such an unusual object was created.
Dr. Michele Koppes returns to the show to talk about her experiences studying glaciers in the field. She describes what a glacier sounds like at night, and why a good glaciologist is generally handy with a soldering iron.