It's #HubbleToolTime! Join astronaut John Grunsfeld and astronaut trainer Christy Hansen in this first episode to learn about how astronauts trained to use the tools on the Hubble servicing missions: https://www.youtube.com/watch?v=qipdcWHjOFA&list=PLiuUQ9asub3Ta8mqP5LNiOhOygRzue8kN&index=2&t=0s
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