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By NASA
4 min read
Preparations for Next Moonwalk Simulations Underway (and Underwater)
Jacquelyn Shuman visually assesses a prescribed fire at Ft. Stewart in Georgia, working with partner organizations as part of the Department of Defense Ft. Stewart 2024 Fire Research Campaign. USFS/Linda Chappell Jacquelyn Shuman, FireSense Project Scientist at NASA Ames Research Center, originally wanted to be a veterinarian. By the time she got to college, Shuman had switched interests to biology, which became a job teaching middle and high school science. Teaching pivoted to finance for a year, before Shuman returned to the science world to pursue a PhD.
It was in a forest ecology class taught by her future PhD advisor, Herman “Hank” Shugart, that she first discovered a passion for ecosystems and dynamic vegetation that led her into the world of fire science, and eventually to NASA Ames.
While Shuman’s path into the world of fire science was not a direct one, she views her diverse experiences as the key to finding a fulfilling career. “Do a lot of different things and try a lot of different things, and if one thing isn’t connecting with you, then do something different,” Shuman said.
Diving into the World of Fire
Shuman’s PhD program focused on boreal forest dynamics across Russia, examining how the forest changes in response to climate change and wildfire. During her research, she worked mainly with scientists from Russia, Canada, and the US through the Northern Eurasia Earth Science Partnership Initiative (NEESPI), where Shugart served as the NEESPI Chief Scientist. “The experience of having a highly supportive mentor, being a part of the NEESPI community, and working alongside other inspiring female scientists from across the globe helped me to stay motivated within my own research,” Shuman said.
After completing her PhD, Shuman wanted to become involved in collaborative science with a global impact, which led her to the National Center for Atmospheric Research (NCAR). There, she spent seven years working as a project scientist on the Next Generation Ecosystem Experiment NGEE-Tropics) on a dynamic vegetation model project called FATES (Functionally Assembled Terrestrial Ecosystem Simulator). As part of the FATES team, Shuman used computer modeling to test vegetation structure and function in tropical and boreal forests after wildfires, and was the lead developer for updating the fire portion of the model.
This figure shows fire characteristics from an Earth system model that uses vegetation structure and interactive fire. The FATES model captures the fire intensity associated with burned land and grass growth in the Southern Hemisphere. Shuman et al. 2024 GMD Fire has also played a powerful role in Shuman’s personal life. In 2021, the Marshall Fire destroyed neighborhoods near her hometown of Boulder, Colorado, causing over $513 million of damage and securing its place as the state’s most destructive wildfire. Despite this, Shuman is determined to not live in fear. “Fire is part of our lives, it’s a part of the Earth system, and it’s something we can plan for. We can live more sustainably with fires.” The way to live safely in a fire-inclusive ecosystem, according to Shuman, is to develop ways to accurately track and forecast wildfires and smoke, and to respond to them efficiently: efforts the fire community is continuously working on improving.
The Fire Science Community
Collaboration is a critical element of wildland fire management. Fire science is a field that involves practitioners such as firefighters and land managers, but also researchers such as modelers and forecasters; the most effective efforts, according to Shuman, come when this community works together. “People in fire science might be out in the field and carrying a drip torch and marching along in the hilltops and the grasslands or be behind a computer and analyzing remote sensing data,” Shuman said. “We need both pieces.”
Protecting communities from wildfire impacts is one of the most fulfilling aspects of Shuman’s career, and a goal that unites this community. “Fire research poses tough questions, but the people who are thinking about this are the people who are acting on it,” Shuman said. “They are saying, ‘What can we do? How can we think about this? What information do we need? What are the questions?’ It’s a special community to be a part of.”
Looking to the Future of Fire
Currently at NASA Ames Research Center, Shuman is the Project Scientist for FireSense: a project focused on delivering NASA science and technology to practitioners and operational agencies. Shuman acts as the lead for the project office, identifying and implementing tools and strategies. Shuman still does ecosystem modeling work, including implementing vegetation models that forecast the impact of fire, but also spends time traveling to active fires across the country so she can help partners implement NASA tools and strategies in real time.
FireSense Project Scientist Jacquelyn Shuman stands with Roger Ottmar (United States Forest Service), surveying potential future locations for prescribed burns in Fishlake National Forest. NASA Ames/Milan Loiacono
“Right now, many different communities are all recognizing that we can partner to identify the best path forward,” Shuman said. “We have an opportunity to use everyone’s strengths and unique perspectives. It can be a devastating thing for a community and an ecosystem when a fire happens. Everyone is interested in using all this collective knowledge to do more, together.”
Written by Molly Medin, NASA Ames Research Center
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Last Updated Oct 17, 2024 Related Terms
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By NASA
Researchers verified that 3D micro-computed tomography scans can map the orientation of plant roots in space and used the method to demonstrate that carrots grown in actual and simulated microgravity both had random root orientation. These findings suggest that simulated microgravity offers a reliable and more affordable tool for studying plant adaptation to spaceflight.
MULTI-TROP evaluated the role of gravity and other factors on plant growth. Plant roots grow downward in response to gravity on Earth, but in random directions in microgravity, which is a challenge for developing plant growth facilities for space. Results from this investigation could help address this challenge, advancing efforts to grow plants for food and other uses on future space missions as well as improving plant cultivation on Earth.
Preflight image of the BIOKON facility used to grow carrots for MULTI-TROP. Kayser Italia For climate model simulations, researchers developed four parameters of electrical discharges from thunderclouds that produce visual emissions known as Blue LUminous Events or BLUEs. BLUEs are thought to affect regional atmospheric chemistry and climate. The parameters reported by this study could inform models that help test the global and regional effects of thunderstorm corona discharges, including how their geographic distribution and global occurrence rate will change as the atmosphere warms.
ASIM, an investigation from ESA (European Space Agency), studies high-altitude lightning in thunderstorms and the role it plays in Earth’s atmosphere and climate. Scientists need to understand processes occurring in Earth’s upper atmosphere to determine how lightning is connected to Earth’s climate and weather so they can develop better atmospheric models to guide weather and climate predictions.
Lightning in a thunderstorm off the coast of Africa as seen from the International Space Station. NASA/Matthew Dominick A technique to detect sounds generated by the inner ear could be used as a non-invasive tool for monitoring changes in fluid pressure in the head during spaceflight. Increased fluid pressure in the head that occurs in microgravity can cause visual impairment and may also affect the middle and inner ear. Insight into fluid pressure changes could help scientists develop ways to protect astronauts from these effects.
The ESA and ASI investigation Acoustic Diagnostics monitored hearing function in astronauts on long-term missions using otoacoustic emissions (sounds generated by the inner ear in response to specific tones). Researchers compared these measurements before and during flight to indirectly detect changes in fluid pressure in the head. Different body position and fit of the ear probes affected results of the test and the authors note that these issues need to be addressed.
NASA astronaut Drew Morgan participates in a hearing test for the Acoustic Diagnostics investigation. ESA (European Space Agency)/Luca ParmitanoView the full article
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By NASA
4 Min Read Lunar Autonomy Mobility Pathfinder Workshop: A NASA Chief Technologist Sponsored Workshop
OVERVIEW
The NASA chief technologist’s team, within the Office of Technology, Policy, and Strategy (OTPS), is hosting a Lunar Autonomy Mobility Pathfinder (LAMP) workshop on Tuesday, November 12, 2024, to provide a community forum to discuss modeling and simulation testbeds in this domain. The workshop is in coordination with NASA’s Space Technology Mission Directorate.
With the Artemis campaign, NASA will land the first woman and first person of color on the Moon, using innovative technologies to explore more of the lunar surface than ever before. Technologies like trusted autonomy are necessary to support these types of sustained operations. Trusted autonomy is a more robust level of autonomy designed for long-term operational use.
The LAMP workshop will be held on Tuesday, November 12, 2024, from 10 a.m. to 5 p.m. PST at the University of Nevada Las Vegas (UNLV) Black Fire Innovation Facility in Las Vegas, Nevada. The Black Fire Innovation Center Building is located at 8400 W. Sunset Blvd. Las Vegas, NV 89113, approximately 20 minutes from the UNLV main campus.
This workshop has been designed to coincide with the 2024 Lunar Surface Innovation Consortium fall meeting (also taking place in Las Vegas, Nevada).
The OTPS solver-in-residence is the main organizer and facilitator for this workshop.
PROGRAM
The LAMP workshop will provide a forum for a discussion on topics that include:
A modeling and simulation (M&S) pathfinder to explore an integrated sim environment for lunar stakeholders from commercial industry, other U.S. government agencies, international partners and academia, to simulate their systems that would eventually operate in the lunar environment and to test interoperability between systems. How to leverage the planned rover missions to 1) calibrate and improve this M&S environment over time, and 2) potentially use them as autonomy testbeds to safely mature algorithms in a relevant environment. Please RSVP for in-person or virtual attendance by registering at the following site:
https://nasaevents.webex.com/weblink/register/rdf4dd38bc3bf176dc32d147513f7b77c
*Please note registration is on an individual basis. If attending with multiple guests, each guest must register for the event separately.
LAMP Workshop Agenda
(All times listed are in PST and subject to change)
10:00 a.m. – 12:00p.m.Modeling and Simulation (M&S) showcase (In-person only & optional)
This is an opportunity for interested participants to show their lunar simulation capabilities inside of UNLV’s Blackfire Innovation esports arena. Space is limited. Please indicate if you are interested in participating when you register, and we will reach out with additional information. 1:00 –2:00p.m.Challenges to Developing Trusted Autonomy
NASA will discuss the challenges of maturing autonomy that can be trusted to operate over long periods of time and how we can work together to overcome those challenges.2:00 –3:00p.m.Pre-Formulation Discussion of a Lunar Autonomy Mobility Pathfinder Modeling and Simulation Environment
Subject matter experts (SMEs) from NASA will layout thoughts on what a digital transformation pathfinder would look like that benefits lunar autonomy efforts across the globe. 3:00 – 3:15p.m.Break3:15 – 4:15p.m.Lunar Testbeds Discussion
This will be a discussion focused on how assets on the moon could be used as testbeds to generate truth data for Earth-based simulations and to validate that autonomy can be trusted in the lunar environment.4:15 – 5:00p.m.Polling and Discussions
Audience feedback will be solicited on various topics. This will include a pre-formulated series of questions and real time polls. CONTACT
For questions, please email:
Dr. Adam Yingling
2024 OTPS Solver-in-Residence
Office of Technology, Policy, and Strategy (OTPS)
NASA Headquarters
Email: adam.j.yingling@nasa.gov
The Solver-in-Residence (SiR) program is a one-year detail position with the chief technologist in NASA’s Office of Technology Policy and Strategy. The program enables a NASA civil servant to propose a one-year investigation on a specific technology challenge and then work to identify solutions to address those challenges.
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Last Updated Oct 10, 2024 EditorBill Keeter Related Terms
Office of Technology, Policy and Strategy (OTPS) Space Technology Mission Directorate View the full article
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By NASA
Engineered heart tissues in space showed impairments that led to increased arrhythmias and loss of muscle strength, changes similar to cardiac aging. This finding suggests that the engineered tissues, essentially an automated heart-on-a-chip platform, can be used to study cardiac issues in space and aging-related cardiovascular disease on Earth.
Microgravity exposure is known to cause changes in cardiovascular function similar to those seen with aging on Earth. Engineered Heart Tissues assessed these changes using 3D cultured cardiac muscle tissue. The 3D cultures, grown with special scaffolds and derived from human cells, are better at reproducing the behavior of actual tissues than previous models. Results could support development of countermeasures for crew members on future long-duration space missions and development of drugs to treat cardiac diseases on Earth.
A crew member conducts a media exchange in the tissue chambers for the Engineered Heart Tissue investigation.NASA A space-based and an airborne imaging spectrometer together make it possible to attribute the source of methane and carbon dioxide plumes to specific sectors, such as oil and gas or agriculture. Methane and carbon dioxide emissions are primary drivers of human-caused climate change. This finding could improve greenhouse gas budget and inform mitigation strategies.
The space station’s Earth Surface Mineral Dust Source Investigation (EMIT) instrument was designed to determine the type and distribution of minerals in the dust of Earth’s arid regions, but researchers found that EMIT data also can identify specific sources of methane and carbon dioxide emissions. The space-based instrument can identify emissions over large areas and provide repeat observations that reduce uncertainty. The Airborne Visible/Infrared Imaging Spectrometer-3, a NASA Jet Propulsion Laboratory instrument, can quantify smaller emissions sources. Combining these observations provides more information on emission sources.
A cluster of methane plumes detected by the Earth Surface Mineral Dust Source Investigation over approximately 150 square miles.NASA Even short periods of higher relative humidity can increase growth of fungi in spacecraft dust and change the diversity of species present. This finding suggests that moisture conditions can predict changes in fungal growth and composition in spacecraft and space habitats, helping to protect astronaut health and structure integrity.
The space station contains a unique community of microbes, including many that reside in dust, much like in indoor environments on Earth. Aerosol Sampler collected airborne particles in the station’s cabin air, including dust, for examination on the ground. There are many potential sources of daily elevated moisture conditions on the space station and scientists need to understand how this affects the fungal and bacterial communities in spacecraft dust. The model described in the paper also could assess how other environmental factors such as microgravity and elevated carbon dioxide affect these microbes.
An Aerosol Sampler collection device aboard the International Space Station. NASAView the full article
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