A month after the riots in New York, a raid on an Atlanta movie theater sparked a gay liberation movement of its own
The Planetary Society's second solar sail will attempt to use sunlight to fly through space
These four sites give visitors a glimpse into the trench warfare tactics soldiers experienced during the Great War
Tied to a new series from the Smithsonian Channel, the app is the closest you can get to being on the moon without time-traveling to 1969
Apollo at 50: We Choose to Go to the Moon
To counter the effects of weightlessness, NASA equipped Apollo 11 with an Exer-Genie for isometric exercises
Adam Chandler’s new book explores the intersection between fast food and U.S. history
The invention was once received with chilly skepticism but has become a fixture of American life
A leak in a heat pump gave rocket scientist Lonnie Johnson the idea for his powerful squirt gun
College dropout Richard Drew became an icon of 20th century innovation, inventing cellophane tape, masking tape and more
A Canadian department store tried to revolutionize buying when it opened a shop with booths and screens for ordering merchandise
2,500 years ago, Anaxagoras correctly determined that the rocky moon reflects light from the sun, allowing him to explain lunar phases and eclipses
The By the People art festival at the Smithsonian's Arts and Industries Building is a feast for the eyes and the soul
The robo-fish pumps energy-packed liquid through vein-like tubes to move its fins and swim for hours
Artifacts from the National Museum of American History highlight the broader story of gay history and activism
Despite being much smaller than previous fires, the river blaze in Cleveland 50 years ago became a symbol for the nascent environmental movement
Why send a postcard during your travels when you can 'post-a-nut?'
In Washington’s Virginia, family was a crucial determinant of social and economic status, and freedom
Beyond Dinosaurs: The Secrets of Earth's Past
The only hyena to live in North America, <i>Chasmaporthetes</i>, had the stature of a wolf and the powerful jaws of its modern relatives
Today, vaccinating against cervical cancer is routine. But before Sarah Stewart, scientists dismissed the idea of a cancer-preventing vaccine as ludicrous
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