Artificial Gravity

If you’re fascinated by the idea of humans traveling through space and curious about how that all works, you’ve come to the right place.







“Houston We Have a Podcast” is the official podcast of the NASA Johnson Space Center from Houston, Texas, home for NASA’s astronauts and Mission Control Center. Listen to the brightest minds of America’s space agency – astronauts, engineers, scientists and program leaders – discuss exciting topics in engineering, science and technology, sharing their personal stories and expertise on every aspect of human spaceflight. Learn more about how the work being done will help send humans forward to the Moon and on to Mars in the Artemis program.


On Episode 188, Bill Paloski, former director of the Human Research Program at NASA’s Johnson Space Center, explores the idea of artificial gravity within a spacecraft for long-duration missions and explains how it may affect the human body from what we have learned through Earth-based studies. This episode was recorded on December 7, 2020.


Gary Jordan (Host): Houston, we have a podcast. Welcome to the official podcast of the NASA Johnson Space Center, Episode 188,”Artificial Gravity.” I’m Gary Jordan and I’ll be your host today. On this podcast we bring in the experts, scientists, engineers, astronauts, all to let you know what’s going on in the world of human spaceflight. Name a space movie. Almost any of them, when you see them flying through space, a lot of times they’re standing or sitting in the cockpit or bridge, not floating. There’s a mention of an artificial gravity generator that helps them to accomplish this phenomenon. The idea of using artificial gravity within a spacecraft is an intriguing one. Many say it would be a good way to keep astronauts healthy on long trips, preventing bone and muscle loss for the 18 or so months it would take in weightlessness to travel to and from Mars. The question is, do we need artificial gravity for a trip to Mars? The truth is we don’t know but we’re researching this very idea to understand it better. On this episode, we’re going to explore the effects of artificial gravity on the human body. Our guest today is one of the leading minds for understanding this concept, Dr. Bill Paloski, former director of the Human Research Program at NASA. He spent much of his career exploring the effects of artificial gravity through Earth-based studies and has published several research papers on the topic. So, let’s get right into it. Artificial gravity with Dr. Bill Paloski. Enjoy.


Host: And a very interesting topic, too. Right. Artificial gravity. In terms of what people, you know, generally ask questions about when they think about human spaceflight, artificial gravity is usually one of those questions. Everybody thinks there’s a room that you can just kind of flip a switch. A little more complicated than that. So, I’m glad that we’re diving into this with you today.


Host: I wanted to start, though, to understand artificial gravity and understand mainly what we’re going to be talking about today is the effects of artificial gravity on the human body. I want to set some context for what it takes for a person to dive into this field. Starting with a little bit of your background, it says you had a lot of training in mechanical and biomedical engineering.


Bill Paloski: That’s correct. Yes. I have an undergraduate degree in mechanical engineering and then I went to graduate school, got a master’s degree and PhD in biomedical engineering, which at that time was and at that institution was mostly electrical and systems engineering coupled with systems physiology. So that was kind of the starting point for what I did.


And then after that, I spent some time working in a trauma research center and we were doing multisystem studies on people who have multiple trauma and what that means is people who are in bad accidents. We were trying to understand a sequence of organ systems failures after big accidents like that over a period of time. So that was my first introduction to looking at all the systems of the body at the same time. And if you’re going to do artificial gravity research, you need to look at all the organs that are affected and not just some of them.



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