Chris Hadfield
Neil deGrasse Tyson

Learn How Astronauts Prepare

Understand astronaut training, spacewalks, and research for future Mars habitation

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Get unlimited access to all 200+ classes taught by the world's best, starting at $10/month (billed annually).

Learn How Astronauts Prepare

Understand astronaut training, spacewalks, and research for future Mars habitation

Sign Up

Get unlimited access to all 200+ classes taught by the world's best, starting at $10/month (billed annually).

Chris Hadfield
Neil deGrasse Tyson

What You'll Learn

Starting at $10/month (billed annually) for all classes and sessions

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