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By NASA
3 min read
Preparations for Next Moonwalk Simulations Underway (and Underwater)
Expedition 64 Flight Engineer Victor Glover of NASA sips on a water bag. The latest book marks our third effort to review available literature regarding the role of nutrition in astronaut health. In 2009, we reviewed the existing knowledge and history of human nutrition for spaceflight, with a key goal of identifying additional data that would be required before NASA could confidently reduce the risk of an inadequate food system or inadequate nutrition to as low as possible in support of human expeditions to the Moon or Mars. We used a nutrient-by-nutrient approach to address this effort, and we included a brief description of the space food systems during historical space programs.
In 2014, we published a second volume of the book, which was not so much a second edition, but rather a view of space nutrition from a different perspective. This volume updated research that had been published in the intervening 6 years and addressed space nutrition with a more physiological systems-based approach.
The current version is an expanded, updated version of that second book, providing both a systems approach overall, but also including details of nutrients and their roles within each system. As such, this book is divided into chapters based on physiological systems (e.g., bone, muscle, ocular); highlighted in each chapter are the nutrients associated with that particular system. We provide updated information on space food
systems and constraints of the same, and provide dietary intake data from International Space Station (ISS) astronauts.
We present data from ground-based analog studies, designed to mimic one or more conditions similar to those produced by spaceflight. Head-down tilt bed rest is a common analog of the general (and specifically musculoskeletal) disuse of spaceflight. Nutrition research from Antarctica relies on the associated confinement
and isolation, in addition to the lack of sunlight exposure during the winter months. Undersea habitats help expand our understanding of nutritional changes in a confined space with a hyperbaric atmosphere. We also review spaceflight research, including data from now “historical” flights on the Space Shuttle, data from the Russian space station Mir, and earlier space programs such as Apollo and Skylab. The ISS, now more than
20 years old, has provided (and continues to provide) a wealth of nutrition findings from extended-duration spaceflights of 4 to 12 months. We review findings from this platform as well, providing a comprehensive review of what is known regarding the role of human nutrition in keeping astronauts healthy.
With this latest book, we hope we have accurately captured the current state of the field of space food and nutrition, and that we have provided some guideposts for work that remains to be done to enable safe and successful human exploration beyond low-Earth orbit.
Human Adaptation to Spaceflight: The Role of Food and Nutrition – 2nd Edition
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Human Adaptation to Spaceflight: The Role of Food and Nutrition – 1st Edition
Download 1st Edition PDF
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Last Updated Oct 23, 2024 EditorRobert E. LewisLocationJohnson Space Center Related Terms
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By NASA
A mentor of research scientist Meloë Kacenelenbogen once shared a sentiment from French author André Gide: “You cannot discover new oceans unless you have the courage to lose sight of the shore.” Kacenelenbogen pushes beyond her comfort zone to explore the unknown.
Name: Meloë S. Kacenelenbogen
Formal Job Classification: Research scientist
Organization: Climate and Radiation Laboratory, Science Directorate (Code 613)
Dr. Meloë S. Kacenelenbogen is a research scientist at NASA’s Goddard Space Flight Center in Greenbelt, Md. She studies the impact of aerosols on air quality and the Earth’s climate.Photo courtesy of Meloë Kacenelenbogen What do you do and what is most interesting about your role here at Goddard?
I study the impact of aerosols — suspended particles from, for example, wildfire smoke, desert dust, urban pollution, and volcanic eruptions — on air quality and the Earth’s climate. I use space, air, and ground-based observations, as well as models.
Why did you become a scientist? What is your educational background?
I never made a deliberate choice to become a scientist. I started with very little confidence as a child and then built up my confidence by achieving things I thought I could not do. I chose the hardest fields to work on along the way. Science looked hard and so did fluid mechanics, remote sensing, and atmospheric physics. I have failed many times, but I always learn something and move on. I do get scared and maybe even paralyzed for a day or two, but I never let fear or failure immobilize me for long.
I was born in Maryland, but my family moved to France when I was young, so I am fluent in French. I have a bachelor’s and master’s degree in mechanical engineering, and physical methods in remote sensing from the Université Pierre et Marie Curie (Paris VI, Jussieu). In 2008, I got a Ph.D. in atmospheric physics for applying satellite remote sensing to air quality at the Université des Sciences et Technologies de Lille (USTL), France.
What are some of your career highlights?
After my Ph.D., I worked for the Atmospheric Lidar Group at the University of Maryland, Baltimore County (UMBC), on spaceborne and ground-based lidars. In 2009, I got a NASA Post-doctoral Program (NPP) fellowship at the agency’s Ames Research Center in California’s Silicon Valley, where I worked for 13 years on space-based, aircraft-based, and ground-based atmospheric aerosol vertical distribution and aerosol typing.
In 2022, I came to work at the Climate and Radiation Lab at Goddard.
What is most interesting about aerosols?
Aerosols are very topical because they have a huge impact on the air we breathe and our Earth’s climate. The smaller the aerosol, the deeper it can get into our lungs. Among other sources, aerosols can come from cars, factories, or wildfires. We all know that wildfires are becoming bigger and more frequent. They are expected to happen even more frequently in the future due to climate change. Both when I was living in California and here in Maryland, I have experienced first-hand choking from the wildfire smoke. I will always remember how apocalyptic it felt back in the summer of 2020 in California when wildfire smoke was paired with COVID confinement, and the sky turned Mars-like orange.
Please tell us about your involvement with the Atmosphere Observing System (AOS)?
I am incredibly lucky to be able to contribute to the next generation of NASA’s satellites. I am working on AOS, which will observe aerosols, clouds, convention, and precipitation in the Earth’s atmosphere. I am part of the team that is helping design several instruments and algorithms.
My role is to connect this spaceborne observing system to all our other space, ground, and air-based measurements at the time of launch. We are making a mesh of observations to address the science questions, run the algorithms, and validate the spaceborne measurements. I am constantly pushed to expand my horizon and my own knowledge.
Why do you enjoy always challenging yourself intellectually?
I started that way. I had no confidence, so I felt that the only way I could build my confidence was to try doing things that scared me. I may sometimes be a little scared, but I am never bored.
What did you learn from your mentors?
A few years ago, a mentor shared a quote from André Gide with me that encapsulates what we are talking about: “You cannot discover new oceans unless you have the courage to lose sight of the shore.” In other words, it is OK, maybe preferable, to be out of my comfort zone to explore the unknown as scary as it may be.
Along the way, it has been extremely important for me to deliberately choose mentors. To me, a good mentor has earned the respect of all who have worked with them, is uplifting, reassuring, and gives me the invaluable guidance and support that I need. I deliberately try to surround myself with the right people. I have been very, very fortunate to find incredible people to encourage me.
As a mentor, what do you advise?
I tell them to deliberately choose their mentors. I also tell them that it is OK to be uncomfortable. Being uncomfortable is the nature of our field. To do great things, we often need to be uncomfortable.
Why do you enjoy working on a team?
I love working on teams, I love to feed off the positive energy of a team whether I lead it or am part of it. In my field, teamwork with a positive energy is incredibly satisfying. Everybody feeds off everybody’s energy, we go further, are stronger, and achieve more. This may not happen often, but when it does it makes it all worth it.
What are the happiest moments in your career?
I am always happiest when the team publishes a paper and all our efforts, are encapsulated in that one well-wrapped and satisfying peer-reviewed paper that is then accessible to everyone online. Every paper we publish feels, to me, the same as a Ph.D. in terms of the work, pain, energy, and then, finally, satisfaction involved.
What do you hope to achieve in your career?
I want to have been a major contributor to the mission by the time the AOS satellites launch.
What do you do for fun?
I do mixed martial arts. I love the ocean, diving, and sailing. I also love going to art galleries, especially to see impressionist paintings to reconnect with my Parisian past.
Meloë Kacenelenbogen once shared a sentiment from French author André Gide: “You cannot discover new oceans unless you have the courage to lose sight of the shore.”Photo courtesy of Meloë Kacenelenbogen Who is your favorite author?
I love Zweig, Kafka, Dostoyevsky, Saint-Exupéry, and Kessel. The latter two wrote a lot about aviators in the early 1900s back in the days when it was new and very dangerous. Those pilots, like Mermoz, were my heroes growing up.
Who would you like to thank?
I would like to thank my family for being my rock.
What are your guiding principles?
To paraphrase Dostoevsky, everyone is responsible to all men for all men and for everything. I have a strong sense of purpose, pride, justice, and honor. This is how I try to live my life for better or for worse.
By Elizabeth M. Jarrell
NASA’s Goddard Space Flight Center, Greenbelt, Md.
Conversations With Goddard is a collection of Q&A profiles highlighting the breadth and depth of NASA’s Goddard Space Flight Center’s talented and diverse workforce. The Conversations have been published twice a month on average since May 2011. Read past editions on Goddard’s “Our People” webpage.
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Last Updated Oct 22, 2024 EditorMadison OlsonContactRob Garnerrob.garner@nasa.govLocationGoddard Space Flight Center Related Terms
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By NASA
Learn about some of the engineering work being done by five members of NASA’s Europa Clipper mission, which aims to launch Thursday, Oct. 10.NASA With NASA’s Europa Clipper just weeks away from launch, five short videos give a behind-the-scenes peek at some of the engineers dedicated to making the mission a success.
What does it take to build a massive spacecraft that will seek to determine if a mysterious moon has the right ingredients for life? Find out in a new video series called “Behind the Spacecraft,” which offers behind-the-scenes glimpses into the roles of five engineers working on NASA’s Europa Clipper mission, from building the spacecraft’s communications systems to putting it through rigorous tests so the orbiter can meet its science goals in space.
With its launch period opening Thursday, Oct. 10, Europa Clipper is the agency’s first mission dedicated to exploring an ocean world beyond Earth. The spacecraft will travel 1.8 billion miles (2.9 billion kilometers) to the Jupiter system, where it will investigate the gas giant’s moon Europa, which scientists believe contains a global saltwater ocean beneath its icy shell.
The videos are being released here weekly. The first two are already out.
Meet the team:
Dipak Srinivasan, lead communications systems engineer at the Johns Hopkins Applied Physics Laboratory, makes sure the Europa Clipper team can communicate with the spacecraft. Learn more about his work in the video above. Sarah Elizabeth McCandless, navigation engineer at NASA’s Jet Propulsion Laboratory, helped plan Europa Clipper’s trajectory, ensuring the spacecraft arrives at Jupiter safely and has a path to fly by Europa dozens of times. Learn more about Sarah’s work here. Jenny Kampmeier, a science systems engineer at JPL, acts as an interface between mission scientists and engineers. Andres Rivera, a systems engineer at JPL and first-generation American, works on Europa Clipper’s cruise phase — the journey from Earth to Jupiter. Valeria Salazar, an integration and test engineer at JPL who spent her childhood in Mexico, helped test the Europa Clipper spacecraft to ensure its launch readiness. Upcoming Livestreams and Broadcasts
Europa Clipper experts will answer questions about the mission in a NASA Science Live show airing in English on Tuesday, Oct. 1, and in Spanish on Thursday, Oct. 3. The broadcasts will appear on NASA+, YouTube, Facebook, and X. The Spanish broadcast will be streamed on the NASA en Español YouTube channel. Viewers can submit questions on social media using the hashtag #askNASA or by leaving a comment in the chat section of the Facebook or YouTube stream.
Europa Clipper is the largest spacecraft NASA has ever developed for a planetary mission and will fly through the most punishing radiation environment of any planet in the solar system. The spacecraft will orbit Jupiter and, during multiple flybys of Europa, will collect a wealth of scientific data with nine science instruments and an experiment that uses its telecommunications system to gather gravity data.
More About Europa Clipper
Managed by Caltech in Pasadena, California, JPL leads the development of the Europa Clipper mission in partnership with the Johns Hopkins Applied Physics Laboratory (APL) in Laurel, Maryland, for NASA’s Science Mission Directorate in Washington. The main spacecraft body was designed by APL in collaboration with JPL and NASA’s Goddard Space Flight Center in Greenbelt, Maryland. The Planetary Missions Program Office at NASA’s Marshall Space Flight Center in Huntsville, Alabama, executes program management of the Europa Clipper mission. NASA’s Launch Services Program, based at Kennedy, manages the launch service for the Europa Clipper spacecraft.
To learn more about Europa Clipper, visit:
https://europa.nasa.gov/
8 Things to Know About Europa Clipper NASA’s Europa Clipper Gets Its Giant Solar Arrays Kids Can Explore Europa With NASA’s Space Place Europa Clipper Teachable Moment News Media Contacts
Val Gratias / Gretchen McCartney
Jet Propulsion Laboratory, Pasadena, Calif.
626-318-2141 / 818-393-6215
valerie.m.gratias@jpl.nasa.gov / gretchen.p.mccartney@jpl.nasa.gov
Karen Fox / Molly Wasser
NASA Headquarters, Washington
202-358-1600
karen.c.fox@nasa.gov / molly.l.wasser@nasa.gov
2024-127
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