Some of Bill Cosby's accusers were upset that the museum did not initially plan to include a reference to the sexual assault allegations against him. William Thomas Cain/Getty Images hide caption

toggle caption William Thomas Cain/Getty Images

The Smithsonian is sharing images of astronaut graffiti aboard the Apollo 11 command module, including this tribute to the spacecraft. Smithsonian Air and Space Museum hide caption

toggle caption Smithsonian Air and Space Museum

Harry Rubenstein talks about memorabilia from different presidential campaigns. Brandon Chew/NPR hide caption

toggle caption Brandon Chew/NPR
From Axes To Flip-Flops: A Peek At 200 Years Worth Of American Political Swag
  • Download
  • <iframe src="https://www.npr.org/player/embed/464862396/464961073" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">
  • Transcript

A team of blacksmiths, welders, artists and scientists have been working together in Canada to mount the T. rex bones without damaging them. Metal cradles hold 150 of the major bones precisely in place. Research Casting International hide caption

toggle caption Research Casting International
'Nation's T. Rex' Strikes A Rapacious Pose
  • Download
  • <iframe src="https://www.npr.org/player/embed/444276411/445048787" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">
  • Transcript

The Inca were innovators in agriculture as well as engineering. Terracing like this, on a steep hillside in Peru's Colca Canyon, helped them grow food. Doug McMains/Smithsonian National Museum of the American Indian hide caption

toggle caption Doug McMains/Smithsonian National Museum of the American Indian
For Inca Road Builders, Extreme Terrain Was No Obstacle
  • Download
  • <iframe src="https://www.npr.org/player/embed/435480149/435741149" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">
  • Transcript

Underwater archaeology researchers explore the site of the São José slave ship wreck near the Cape of Good Hope in South Africa. Susanna Pershern/Courtesy of U.S. National Parks Service hide caption

toggle caption Susanna Pershern/Courtesy of U.S. National Parks Service

The Smithsonian's Jon Blundell scans the fossilized foot bone — the metatarsal — of the Wankel T. rex to help create a digital 3-D image of the long-dead dinosaur. Nikki Kahn/The Washington Post hide caption

toggle caption Nikki Kahn/The Washington Post
America's T. Rex Gets A Makeover
  • Download
  • <iframe src="https://www.npr.org/player/embed/361736809/361942933" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">
  • Transcript

Discovery is sitting atop NASA's 747 Shuttle Carrier Aircraft, which will fly the shuttle from Florida to Virginia. Roberto Gonzalez/Getty Images hide caption

toggle caption Roberto Gonzalez/Getty Images