It was a tall order. The Mercury missions showed that astronauts could live in space for up to a full day. And the Gemini missions built on this experience to make spectacular progress.

Gemini III lifted off from Cape Kennedy, Florida, carrying astronauts Virgil “Gus” Grissom and John Young on America’s first ...

This timeline highlights the manned and unmanned tests of the Gemini Program. Its main objectives were to test human ability to fly and stay in space for long-durations, to perfect both ...

So, yeah. Our continued space adventures will likely include explosions and failed landings (but please not this week). But ...