“So, If The Sun Were Just An Isolated Black Hole With Nothing Around It, We Would See Nothing.  If

Mission Control is a unique environment.  The people who work there are the cream of the crop.  The tops in their graduating classes, the high performers in industry.  And so working in Mission control, my favorite thing is that I get to work with such uniquely talented people, and of all ages.  So it's a place where we can all come together, everybody with their own skill set, and solve the day's problems.

What was your favorite thing about working in Mission Control? (Also, you are the best

So a lot of the research that we do on board the International Space Station has a relationship to an Earth-based disease.  For example, we worry about bone loss; that's got a relationship to things like osteoporosis on the ground.  All of the things we need to do to keep the human body healthy in a confined environment in the long term we're learning about on the International Space Station.

The things that we do on our six-month missions would build into year-long missions, would build into even longer term missions, for example going to Mars.  So we need to know about things like radiation and the effect on the human body, bone loss, how people are going to be able to work and live together in a confined isolated system for so long.  How we're going to get enough nutrition and getting the right balance of nutrients in a really long duration mission.  And then also, how are we going to keep people healthy?  What kinds of medicines can survive that long in space and how do you treat any illness or injury that occurs?  

So all of these things are actively being researched on board the International Space Station and a lot of them have a component to human health on Earth as well.

How could your research in diseases help missions to the Moon, Mars and other places in our solar system?

Over my 28 years here, I've had the opportunity to work a number of different critical missions at NASA, particularly as a flight director.  And each one of those missions has been an amazing honor to have the public's trust put in my hands.  

But one of the aspects I like the most about it, which is also the scariest, is the fact that people's lives are in my hands.  Decisions that I make can impact the lives of the crew members, the integrity of the vehicle, and the success of the mission, and I liked having that responsibility.  I was honored to have that responsibility.

And I think if you are a flight director and you ever lose track of that, then it's time to stop being a flight director.

Before my question I would like to congratulate you on your career at Nasa, it must be amazing to work there even if you didn’t achieve your dream of being an astronaut, you can still lead missions from the ground. (Sorry if my punctuation is a bit off) as for my question, what has it been like to work at nasa all of these years and get to help with so many missions? Do you ever get nervous for the people who’s lives are in your hands? Signed ~ Phillip

"Every job that I have had here, I have had to overcome challenges in order to succeed in it. Whether it's somebody telling me I can't be a flight director because I've never been a flight controller.  Or I can't possibly manage a significant amount of budget and personnel because I've never been a low level line manager before.  

And my--the way I live my life is you never know until you try.  And a lot of people that take on these jobs are never fully prepared when they first start.  But as long as you are fully prepared to acknowledge where you fall short and willing to go off and seek help from people who are masters in those areas, then you will succeed."

What challenges have you overcame to get to the job that you have now? Love from Ireland ❤️

"So I got started working on black holes my first year in graduate school.  I actually tried another research project first about cosmology, but frankly the math was just too difficult for me, so I decided to go into easier things: black holes."

I love astrophysics and especially black holes and I want to pursue a career on them, but to be honest I'm scared to be not good enough or not clever enough. How did you decide to work on black holes? How did you become the person you are today?

Yeah!  So if you want to be an astronaut, my best piece of advice is definitely to study something in the science field.  Basically every astronaut has some kind of background in science, technology, engineering.  Everybody has--even the fighter pilots have studied something and done a Masters degree in some kind of STEM field.  So if you start there, you're definitely headed in the right direction.

What is your advice to someone who wants to follow the same steps you take?

On a daily basis?  That's a good question, because when you think of people that might be dressed in flight suits and things or have the duty title of a pilot, that's not all we do.  

Most of our time is actually spent working, coordinating with teams, whether it's scientists with different objectives, learning what they want to do so that we know how to translate that into where we need to put the airplane, to put their instruments in the right place to measure what they want to look at.  Or with engineers, when we're redesigning or modifying aircraft so they can perform the way we want.

That combination there is really pretty amazing.

What do you do on a daily basis?

My mother gave me the best advice I'd ever received, and it was "trust your instincts."  I've applied that when I was afraid to go away to college, and she told me, "Trust your instincts, stay at home."  

I've applied that every time I take on a new position where I'm afraid: I think I can do it, I'm not sure if I know everything that's required, but I'm pretty sure I could do it.  So trust your instincts, even though you don't have all the information, believe in yourself and you can achieve great things.

What’s the best piece of advice you have ever received?

"So a black hole is just pure gravity.  In technical terms, that means that Einstein taught us that gravity is energy.  Energy is mass (E = mc2) .

Mass creates more gravity, so you get this essentially runaway effect where gravity is causing energy is causing mass is causing more gravity.

And it just pulls itself in on itself more and more and more, and you get this runaway called a singularity surrounded by an event horizon, which is the black hole."

uhmm, can you tell me what exactly a black hole is? or what iy does? thanks, just really confused and curious on how it actually works.

I think some of the greatest things that we can take a look at what we're currently doing in space and see that future generations are really going to appreciate is all of the science that we're doing on board the International Space Station. So I was lucky enough to participate in just a few of those science experiments.  We did about a hundred different science experiments that I actively participated in on board, two hundred total.  

And I think that's just adding to the knowledge about how the human body works in microgravity, and also how we're going to explore, both in lower orbit and then beyond deep space exploration.  So all of these little bits of scientific inquiry add up to really a big body of knowledge, and I hope that's the legacy of the International Space Station and NASA's work in space.

Hii! I'm unsure if you've been asked this before, but I'd like to give it a shot anyway. What's the greatest legacy you hope to leave to the future generations? Whether it's one of the things you've accomplished already or are hoping to accomplish yet. Thank you very much!