theatlantic:

1 Small Step for a Cam: How Astronauts Shot Video of the Moon Landing

On July 20, 1969, Apollo 11 beamed video from the moon back to Earth, live. Here’s how they did it.

Westinghouse engineer Stan Lebar, who was the program manager of the Apollo TV Lunar Camera project, was tasked with developing energy-efficient cameras that would withstand temperatures of plus or minus 250 degrees. They ran on seven watts of power, the amount required to illuminate one Christmas tree light, Lebar says. The resulting TV broadcast was an amazing audiovisual achievement — a giant leap in real time.