Great Smoky Mountains National Park was one of four parks in the eastern U.S. where the Dragonfly Mercury Project got its start. Easier to catch and cheaper to test than fish, dragonfly larvae can be ...

Breakthroughs, discoveries, and DIY tips sent six days a week. Terms of Service and Privacy Policy. Ecologists often rely on health data of fish and bird populations ...

This series will explore historic space missions from the start of the Space Age to the present day, including both crewed and robotic missions. Here we will investigate the scientific rationale ...

Part 2 explores the dramatically different approaches to the launch systems, and the surprising similarities in the factors that contributed to their success. Although they served very different ...

CC0 Usage Conditions ApplyClick for more information. Project Mercury was the United States' first human spaceflight program. Delmas D. "Del" Burchfield (1926-2016) was an engineer at McDonnell ...