Who proved the existence of dark matter? On this episode, Neil deGrasse Tyson and comic co-host Chuck Nice learn about hidden figures of science you need to know aboout with author and science communicator Danni Washington. NOTE: StarTalk+ Patrons can watch or listen to this entire episode commercial-free here: https://www.startalkradio.net/show/science-pioneers-with-danni-washington/Thanks to our Patrons Robert Anderson, Meagan Patrice, cael maurer, Marc-Anthony Serrano, Emily McKnight, Dave Fulton, lily_neko739, Josh Wyner, Tyler Mutchie, and Vanefede for supporting us this week.Photo Credit: Acagastya, CC0, via Wikimedia Commons