STS-1 – ‘The boldest test flight in history’

According to NASA, the boldest test flight ever is not the Wright Brothers at Kitty Hawk, Chuck Yeager's breaking of the sound barrier, or even Yuri Gagarin becoming the first human in space. They argue it is actually the first flight of the Space Shuttle, which is marking its 40th anniversary in April 2021.

Gemini 10: The crammed flight plan to end all crammed flight plans

Young and Collins were both slightly wary of the flight plan they were tasked with completing, knowing that time would be stacked against them from the second they left the launchpad. Two rendezvous, one docking, a major altitude-changing burn, two spacewalks and 15 experiments in just under three days was a lot to ask.