Behind the fossilized teeth, bones, and claws displayed in the National Museum of Natural History’s new Fossil Hall is the story of two men and a nasty feud. During the paleontology boom of the late 1800s, scientists O.C. Marsh and Edward Cope went from good friends who named species after each other, to the bitterest of enemies who eventually ruined each other's lives and careers. Come for the dinos, stay for the grudges. Episode originally aired June 12, 2019. 

Did you know that Martha Washington was essential to America’s Revolutionary War effort? Or that Eleanor Roosevelt was the driving force behind the United Nations’ Universal Declaration of Human Rights? According to journalist, writer, and commentator Cokie Roberts, many of America's First Ladies were dynamic, politically engaged trailblazers who are often overlooked. We sit down with the Smithsonian's National Portrait Gallery director, Kim Sajet, to talk about a recent episode of the museum’s new podcast, Portraits. In it, she and Cokie discuss four First Ladies who are remembered for their influence on American history. Note: As many of you have probably heard, Cokie Roberts passed away in the days since we originally recorded this episode. Our heart goes out to all of Cokie’s family, friends, and people like us who have enjoyed her work for decades. Portraits podcast website: https://npg.si.edu/podcastsPortraits of First Ladies featured in the episode: Martha Washington portrait Dolley Madison portrait Eleanor Roosevelt portrait Nancy Reagan portrait

Sidedoor hits the road, sneaking behind the scenes for the ultimate Smithsonian field trip we never took as kids. Lizzie and producer Justin O'Neill journey by bike, train, and even horse (okay, plastic horse) in a romp from museum to museum, encountering a hungry predator, a group of Broadway monsters, the last work of an iconic painter, and lots more. Join us!Links from the episode: Hokusai's Under the Wave off Kanagawa (aka "The Great Wave") at the Freer Gallery  Tarantula Feedings at the National Museum of Natural HistoryDavid Best's Temple at the Renwick GalleryMitsitam Café at the National Museum of the American IndianThe Smithsonian Carousel

David Levinthal is a New York-based artist whose photography depicts “the America that never was but always will be.” He uses toys to recreate iconic moments in American history and pop culture, encouraging his audience to question America’s collective memory. Sidedoor visits Levinthal in his studio, and an exhibition of his work at the Smithsonian American Art Museum titled “American Myth & Memory: David Levinthal Photographs” to explore the distinction between fact and fable.  Click here to see the images we discuss in the episode.

You probably know orchids as the big, colorful flowers found in grocery stores and given as housewarming gifts. But those tropical beauties represent only a fraction of the estimated 25,000 orchid species worldwide. While their showy relatives fly off the shelves, North America’s more understated native orchids are disappearing in the wild. Scientists at the Smithsonian Environmental Research Center are working to protect these orchids and their habitats, but first they need to solve a surprisingly difficult problem: how to grow one.

Regie Cabico has been called the "Lady Gaga of Spoken Word poetry"—he's outspoken, provocative and iconoclastic. The son of Filipino immigrants living in rural Maryland, Regie says he’ll never be “entirely American or entirely Filipino,” and on stage he uses his poetry to explore identity, social issues, and (of course) love. Regie joins Sidedoor *in studio* for an exclusive live performance, and even offers some poetic cooking tips from the annals of American history.

When NASA’s Apollo 11 mission sent the first astronauts to the moon 50 years ago, there were many things we didn’t know. Like whether the moon’s surface would turn out to be a field of quicksand, if space germs would infect the astronauts, or what exactly the moon was made of. To commemorate the 50th anniversary of the Apollo 11 moon landing, we join forces with the National Air and Space Museum’s podcast, AirSpace, to explore the mysteries of lunar science: what we didn't know then, and what we still don't know today.Listen to AirSpace, stories that defy gravity: airandspace.si.edu/learn/airspace-podcast

Deep within the National Museum of American History’s vaults is a battered Atari case containing what’s known as “the worst video game of all time.” The game is E.T. the Extra-Terrestrial, and it was so bad that not even the might of Steven Spielberg could save it. It was so loathsome that all remaining copies were buried deep in the desert. And it was so horrible that it’s blamed for the collapse of the American home video game industry in the early 1980s. This time on Sidedoor, we tell the story of just what went SO wrong with E.T.

Behind the fossilized teeth, bones, and claws displayed in the National Museum of Natural History’s new Fossil Hall is the story of two men and a nasty feud. During the paleontology boom of the late 1800s, scientists O.C. Marsh and Edward Cope went from good friends who named species after each other, to the bitterest of enemies who eventually ruined each other's lives and careers. Come for the dinos, stay for the grudges.

With our fourth season’s launch quickly approaching, take a moment to meet the new voice of Sidedoor!Season Four of the Smithsonian's Sidedoor podcast launches on June 12, 2019. Subscribe now!