From Chris Hadfield's MasterClass

Comms: Mission Control Evolution and Operations

The first words spoken from the Moon were directed to Mission Control for a reason. Learn how Mission Control functions and why it is so critical to the success of a mission to space.

Topics include: Evolving From Launch Control to Mission Control • Mission Control Around the World • Russian Mission Control • A Constant Web of Information • Listen for the Quindar Tone • CAPCOM: Be the Crew’s Trusted Liaison


The first words spoken from the Moon were directed to Mission Control for a reason. Learn how Mission Control functions and why it is so critical to the success of a mission to space.

Topics include: Evolving From Launch Control to Mission Control • Mission Control Around the World • Russian Mission Control • A Constant Web of Information • Listen for the Quindar Tone • CAPCOM: Be the Crew’s Trusted Liaison

Chris Hadfield

Teaches Space Exploration

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Columbia, Houston. We hope you enjoyed your lunch. And we're back with you to [INAUDIBLE] west. Columbia, Houston. We're two minutes to an early [INAUDIBLE] handover. Should just be a momentary interruption. No need to respond. The first word spoken from the moon was, in fact, not Tranquility Base or one small step. But in fact, it was Houston, Houston Tranquility Base here. The Eagle has landed. Houston is mission control. That's where a group of experts were sitting in a room, watching all that information come back from the lunar lander from where Neil and Buzz had just managed to touch down on the surface of the moon. But it's really, I think, significant that the first word from the surface of the moon was talking about mission control. The first American in space was, of course, Al Shepard. He launched out of Florida and didn't even go all the way around the world. Just launched, got up into space, 62 miles, 100 kilometers, above the surface of the world, floated down, and then landed just in the Atlantic on the other side of the Bahamas. Only about a 15 minute flight. You didn't really need mission control for a flight like that. It was only 15 minutes long. And what we really needed was launch control. The people in Florida needed to have all of the information. He wasn't even going to disappear over the horizon. You could do the whole thing with launch control. But if you think about it, as soon as you get going fast enough to not just go up and fall down again, but to start to orbit the world, launch control isn't going to be enough. You now need to be able to talk to the astronaut when they're coming over Africa or all the way around Australia or coming around the world. How are you going to provide communications to them and help when they have a technical problem so that you can make the mission as successful as possible? And sort of by inevitable progression, launch control had to become more and more capable so that they could, if the mission was once around the world, which is an hour and a half or so, 100 minutes, like Yuri Gagarin's first flight was once around, about a 100 minute flight, you need to start developing more capability in the team that's on the ground supporting the flight. And the longer the flight goes, the less you need launch control and the more you need an overall mission control. And then of course, mission control doesn't need to be in the same place you launched from. Because the requirements are not necessarily aligned. You need the group of people at the launch site, which makes sense for, this is why we launch rockets here. But mission control can be somewhere completely different. And it is. In the United States, we launch from Florida. But mission control is in Houston. In Russia, they launch from Baikonur Kazakhstan. But mission control is in Moscow. Very early in the space program, we didn't have relay satellites, satellites that would carry our voices all the way around th...

Explore the unknown

Impossible things happen. At age nine, Chris Hadfield knew he wanted to go to space. He eventually went there three times, becoming a commander of the International Space Station. In his MasterClass, Chris teaches you what it takes to explore space and what the future holds for humans in the final frontier. Learn about the science of space travel, life as an astronaut, and how flying in space will forever change the way you think about living on Earth.


Students give MasterClass an average rating of 4.7 out of 5 stars.

I loved this course. I'm a 61 year old lover of all things 'space' and taking this class has further enriched my knowledge of space travel and exploration... past, present and future. I found Chris to be incredibly engaging and insightful... truly easy to listen to and learn from.

This is an absolutely amazing class. All of the stuff that I am learning is going to be very valuable to me someday soon.

I really loved this class. Incredible and excelent

This was an amazing class. Chris's knowledge and passion for sharing it in a clear and understandable way for us "non-astronauts" was an inspiration. I love how he related his journey to the whole of human experience. Thank you Chris!


Jerry R.

Interesting about the Quindar. Something not really needed now, but they still want it. I can relate.

Jim S.

This was an excellent lesson. I think it was because he has spent so much time as CAPCOM. I like it when it offers us a behind the scenes look at an aspect of space travel we take for granted.

Pedro C.

It is amazing to realize how much can the operations vary upon cultural differences. The radical difference in communication patterns between the USA Mission Control and the Russian Mission Control is based on how differently they perceive the operation, and the need to be "connected", or the need to "let the crew be". Amazing. On the other hand, the experience with the quindar tone, shows us how we humans become a kind of cyberhumans, living integrated to our machines. It was astonishing to know that it was necessary to create an artificial quindar to function properly. Amazing again!!! We all should reflect on how deep we have gotten into this "cyberhumanity", what are the ramifications of it, and what are the demands for leadership, especially for multi-generational crews. Dear Chris, your experiences here have been illuminating for me. Thank you very much for your testimonies.


Even the most simplest of things become so important. How that tone is especially important as the reminder the crew is talking. I'd really love to spend a day listening to Chris talk about his experiences even more.

Ken W.

Sorry Chris! All I could think about was your music video: "Ground Control to Major Tom. Ground Control to Major Tom." Jokes aside, this is one of the most amazing courses I have taken. It has the right amount of details for people with STEM background. More importantly, your actions, wisdom, and talks are truly inspirational. Thank you so much!

Justin S.

Interesting that they still generate an "artificial Quindar" for the mission controllers to hear!

Marc S.

I feel lucky to be able to listen to Chris speak about his passion. Prior to this course, I must admit that I had become so accustomed to news about space travel that it had become routine to me. My newfound understanding has truly renewed the excitement I once had when seeing the Shuttle lift off for the first time. Thank you, Chris!!

SuZett E.

Now I have a term, Quindar, that I whip out at a meeting....just when the moment is right! Love it!

Warren D.

The information is interesting and fantastic. There is so much that I did not know about space flights that this is an exciting journey into the present that I did not know and the future that is sure to unfold. W0W. And it is so well expressed.

Vickie R.

Oh that would be a GREAT job for me-the liason or public relations person who can tell the boss something important or a WARNING NOT to do something. I didn't know it was so chaotic at Mission Control. And still I haven't been able to tell the Prime Minister the warning? How on earth can you tell someone something important they need to know but you don't want the whole world to see what your writing or saying? Maybe I should start learning how to "speak" in code? During the war didn't they have the Morse Code to communicate important things to???