Neil deGrasse Tyson spoke with NASA astronauts Christina Koch and Jessica Meir, currently serving on the International Space Station, on Nov. 25, 2019. Topics included the 'Overview Effect and politics. Story: [Neil deGrasse Tyson Reminds Us Why Smoking Weed in Space Is a Bad Idea](https://www.space.com/41865-neil-degrasse-tyson-weed-in-space.html) Credit: NASA