Today we have the former chief scientist of NASA’s Human Research Program, Dr. Mark Shelhamer. Mark specializes in neurovestibular adaptation to spaceflight.

He is an otolaryngology professor at Johns Hopkins School of Medicine and the director of the school’s Human Spaceflight Lab. He also the director and founder of the Bioastronautics at Hopkins initiative.

In addition to his work with NASA, Mark is an advisor to the commercial and consumer spaceflight industry. In today’s interview, we talk to Mark about some of this work, as well as the research he conducted on the first all-civilian crew that successfully orbited the Earth for three days in a SpaceX capsule.

We mostly talk to Mark, however, about how the harsh conditions of space imperil humans. We have a fascinating discussion about Mark’s role in NASA’s planned human mission to Mars and how he is investigating ways to maintain the health and performance of astronauts on such a long-duration spaceflight.  We also discuss how the lessons Mark is learning about how the lessons of human spaceflight can be applied to healthcare on Earth.

Show notes:

[00:02:42] Dawn starts the interview mentioning that Mark grew up in Philadelphia in the ‘70s. She asks Mark what he was like as a kid.

[00:03:32] Dawn asks if it is true that Mark played drums in a band in school.

[00:03:54] Ken asks Mark to talk about an uncle who was key in fostering Mark’s interest in math and science.

[00:05:31] Ken mentions that Mark was only 10 years old when he took up an interest in electronics and asks what sparked that and what electronics he specifically found interesting.

[00:08:14] Dawn mentions that Mark attended Drexel University and initially wanted to become an electrical engineer but changed his mind somewhere along the way. Dawn asks what caused this shift.

[00:10:20] Ken asks Mark why he selected to attend MIT after Drexel.

[00:13:52] Ken asks Mark how he ended up at Johns Hopkins after finishing his studies at MIT.

[00:15:52] Dawn mentions that when Mark arrived at Johns Hopkins as a postdoc fellow in 1990, he continued the research he had been doing at MIT on sensory motor physiology and modeling, including astronaut adaptation to space flight. Dawn asks Mark to give an overview of this research as well as how he tracked back into studying astronauts.

[00:17:15] Ken mentions Mark’s 2007 book “Nonlinear Dynamics in Physiology: A State-Space Approach,” which provides mathematical-computational tools for analyzing experimental data. Ken asks Mark to talk about the book and its goals.

[00:20:43] Ken mentions that Mark has done quite a bit of research into motion sickness and vestibular issues, and asks about his more recent work on Space Motion Sickness.

[00:24:53] Dawn explains that on Mark’s Wikipedia page, there’s a reference to his pioneering work on a multidisciplinary approach to human space flight research. She asks Mark to give an overview of this work.

[00:29:17]

Episode 152: Mark Shelhamer talks about the effects of spaceflight on humans and NASA’s Planned Mars Mission

Get Started

Download the App