Full episode 689: Digging Up the Bones Act Three A Curious Bone Share a clip ByDavid Kestenbaum David Kestenbaum tells the story of a man on the verge of one of the greatest scientific discoveries of all time … right on the verge. (4 minutes) More in ScienceView all 662: Where There Is a Will Nov. 16, 2018 Act Two: Life Is a Coin With One Side Producer David Kestenbaum took issue with the entire premise of today’s show, and explains why. 655: The Not-So-Great Unknown Aug. 24, 2018 Act One: So Over The Moon Producer David Kestenbaum tells the story of an astronaut who returns with a very unexpected view of the great beyond. 630: Things I Mean to Know Oct. 27, 2017 Act Three: The Sun Also Rises... Over There Among the things we tend to take for granted: The sun comes up and goes down like clockwork. More by David KestenbaumView all 727: Boulder v. Hill Dec. 18, 2020 Act Two: The Other Extinguishers For years one group of people has been trying to push a giant boulder to the top of a hill, like Sisyphus. 715: Long-Awaited Asteroid Finally Hits Earth Aug. 28, 2020 Act Three: Future Imperfect David Kestenbaum talks to one teacher there who’s already gone through a month of in-person learning to see what the future might hold for other schools. 691: Gardens of Branching Paths Jan. 10, 2020 Act Two: Sorry/Not Sorry David Kestenbaum finds out about a speech that, in another world, President Clinton gave on August 17, 1998.