How Quickly Did the Crew of Apollo 13 Know They'd Lost the Moon?

When Apollo 13 lost their oxygen tanks, they lost their lunar landing. But when did the crew figure it out?

Want more on this story? Check out my latest blog post on Vintage Space at Popular Science!

And some related videos about Apollo 13:
What was Gimbal Lock and why was it so scary?
What did NASA change about the spacecraft after Apollo 13?
How did the Apollo command and service modules become one spacecraft?
How did NASA know to use the lunar module as a life boat?

And there's loads of olde timey space to dig into on my blog, Vintage Space, too!

Like even older space? "Breaking the Chains of Gravity: the Story of Spaceflight Before NASA" is available now! You can order your copy on Amazon.

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