I was most surprised in the interview to learn about the accelerated understanding of Exoplanets. As discussed, these are very hard to detect, because they produce no light or other emissions. Therefore, the tuning of telescopes and other sensors to detect a planet is extremely precise, and requires the exo-planet to pass in front of the star and reduce its brightness very slightly.
I'd be interested in learning more about how we went about these adjustments - after looking for the first one, what did we learn about the process of detecting exoplanets that allowed us to predict where we might find others? Tarter shares about how exciting the accelerated pace of discovery is, and I would have been more interested to know why that acceleration was possible.