Apollo's 'One Small Step': The Smallest Part of a Giant Leap 🚀
Discover why Neil Armstrong's famous phrase was surprisingly small compared to the monumental Apollo mission, as told by engineer Donald Rethke.
Hannah Fry
2.3M views • Aug 22, 2025
About this video
The story comes from Donald Rethke (aka Dr. Flush) the engineer who worked on the life support system designs for the Apollo missions.
Michael Collins (Apollo 11) also mentions it in his book, but by his time the sizes were referred to as "extra large, immense, and unbelievable" - seems even astronauts need an ego boost from time to time!
Michael Collins (Apollo 11) also mentions it in his book, but by his time the sizes were referred to as "extra large, immense, and unbelievable" - seems even astronauts need an ego boost from time to time!
Video Information
Views
2.3M
Likes
80.7K
Duration
1:20
Published
Aug 22, 2025
User Reviews
4.8
(469) Related Trending Topics
LIVE TRENDSRelated trending topics. Click any trend to explore more videos.