World's Largest Dental Caps Fitted to Elephant at Calgary Zoo in Historic Procedure

Japan's Nozomi Mars Mission Fails After Struggles with Solar Flares and Technical Issues

After traveling 120 million miles in seven months, NASA’s Mars Pathfinder becomes the first U.

Mars Pathfinder: Pioneering Mission Unveils Secrets of the Red Planet's Surface and Atmosphere

On July 4 in 1971, a primate star is born when a baby western lowland gorilla enters the world at the San Francisco Zoo.

Exploring the Cosmos: How Explorer 38 Paved the Way for Galactic Discoveries in 1968

On July 4, 1965, more than two dozen LGBTQ activists demonstrate in front of Independence Hall in Philadelphia in one of the earliest gay rights demonstrations in the United States.

Accidental Discovery Revolutionizes Automotive Finishing with Vibrant Colors in 1920s Cars

Roosevelt Makes History with First Message Sent via Trans-Pacific Cable

Elwood Haynes: The Pioneer Behind America's Oldest Automobile on Display at Smithsonian