Full episode 630: Things I Mean to Know Act Three The Sun Also Rises... Over There Share a clip BySelena Ross Among the things we tend to take for granted: The sun comes up and goes down like clockwork. Except when it doesn’t. Reporter Selena Ross tells the story. (11 minutes) More in ScienceView all 630: Things I Mean to Know Oct. 27, 2017 Act 4: Period Drama Remember learning that women’s menstrual cycles tend to sync up when they spend a lot of time together? Producer Diane Wu was skeptical. So she went looking for evidence. 617: Fermi’s Paradox May 19, 2017 Act 1: I Think We’re Alone Now David’s story continues. He visits his old physics professor, who helps him figure out what to think. 584: For Your Reconsideration Apr. 8, 2016 Act 1: Knock Knock. Who’s There? The Truth. The story from the prologue continues, with the researchers re-doing the canvassing experiment. And the results are even more surprising this time around. Staff RecommendationsView all 186 June 8, 2001 Prom While the seniors danced at Prom Night 2001 in Hoisington, Kansas—a town of about 3,000—a tornado hit the town. 550 Mar. 13, 2015 Three Miles What happens when of a group of public school students in the Bronx goes to visit an elite private school three miles away.