The museum is open Friday–Tuesday, 10:00 a.m.–5:30 p.m. All visitors ages two and older are required to wear a face covering. Timed-entry passes are no longer required. Follow the link to plan your visit.
Helium is the second most abundant element in the universe, but also evanescent and thus hard to hold. It was discovered in 1868 as a yellow line in the spectrum of the solar corona, and named for Helios, the Greek god of the sun.
This summer marks the centennial of a bird—possibly the most famous pigeon in history—going on display at the Smithsonian. A representative of Columba livia domestica, this bird is known as simply Cher Ami.
One hundred years ago Marie Curie stood among the rose bushes, the press, and a crowd of White House guests, holding a golden key. The key opened a box that contained a gram of radium. Could it also unlock a cure to cancer? Women across America were led to believe as much, rising to the call sent out in their journals and newspapers to fund a gift worth more than $100,000.