Rana Adhikari is a Professor of Physics at Caltech and a member of the LIGO team, who were the first to measure gravitational waves – https://en.wikipedia.org/wiki/First_observation_of_gravitational_waves
Their detection papers are available here – https://www.ligo.caltech.edu/page/detection-companion-papers
Rana on Twitter – https://twitter.com/RanaXAdhikari
YC’s podcast is hosted by Craig Cannon – http://twitter.com/craigcannon