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By NASA
5 Min Read Wearable Tech for Space Station Research
A wearable monitoring device is visible on the left wrist of NASA astronaut Jeanette Epps. Credits: NASA Science in Space Nov 2024
Many of us wear devices that count our steps, measure our heart rate, track sleep patterns, and more. This information can help us make healthy decisions – research shows the devices encourage people to move more, for example – and could flag possible problems, such as an irregular heartbeat.
Wearable monitors also have become common tools for research on human health, including studies on the International Space Station. Astronauts have worn special watches, headbands, vests, and other devices to help scientists examine sleep quality, effectiveness of exercise, heart health, and more.
Warm to the core
Spaceflight can affect body temperature regulation and daily rhythms due to factors such as the absence of convection (a natural process that transfers heat away from the body) and changes in the cardiovascular and metabolic systems.
A current investigation from ESA (European Space Agency), Thermo-Mini or T-Mini examines how the body regulates its core temperature during spaceflight. The study uses a non-invasive headband monitor that astronauts can wear for hours at a time. Data from the monitor allow researchers to determine the effect on body temperature from environmental and physiological factors such as room temperature and humidity, time of day, and physical stress. The same type of sensor already is used on Earth for research in clinical environments, such as improving incubators, and studies of how hotter environments affect human health.
Thermolab, an earlier ESA investigation, examined thermoregulatory and cardiovascular adaptations during rest and exercise in microgravity. Researchers found that core body temperature rises higher and faster during exercise in space than on Earth and that the increase was sustained during rest, a phenomenon that could affect the health of crew members on long-term spaceflight. The finding also raises questions about the thermoregulatory set point humans are assumed to have as well as our ability to adapt to climate change on Earth.
NASA astronaut Nick Hague wears the T-mini device while exercising.NASA To sleep, perchance to dream
Spaceflight is known to disrupt sleep-wake patterns. Actiwatch Spectrum, a device worn on the wrist, contains an accelerometer to measure motion and photodetectors to monitor ambient lighting. It is an upgrade of previous technology used on the space station to monitor the length and quality of crew member sleep. Data from earlier missions show that crew members slept significantly less during spaceflight than before and after. The Actiwatch Sleep-Long investigation used an earlier version of the device to examine how ambient light affects the sleep-wake cycle and found an association between sleep deficiency and changes during spaceflight in circadian patterns, or the body’s response to a normal 24-hour light and dark cycle. Follow up studies are testing lighting systems to address these effects and help astronauts maintain healthy circadian rhythms.
NASA astronaut Sunita Williams wears an Actiwatch as she conducts research.NASA Wearable Monitoring tested a lightweight vest with embedded sensors to monitor heart rate and breathing patterns during sleep and help determine whether changes in heart activity affect sleep quality. The technology offers a significant advantage by monitoring heart activity without waking the test subject and could help patients on Earth with sleep disorders. Researchers reported positive performance and good quality of recorded signals, suggesting that the vest can contribute to comprehensive monitoring of individual health on future spaceflight and in some settings on Earth as well.
These and other studies support development of countermeasures to improve sleep for crew members, helping to maintain alertness and lessen fatigue during missions.
(Not) waiting to exhale
Humans exhale carbon dioxide and too much of it can build up in closed environments, causing headaches, dizziness, and other symptoms. Spacecraft have systems to remove this substance from cabin air, but pockets of carbon dioxide can form and be difficult to detect and remove. Personal CO2 Monitor tested specially designed sensors attached to clothing to monitor the wearer’s immediate surroundings. Researchers reported that the devices functioned adequately as either crew-worn or static monitors, an important step toward using them to determine how carbon dioxide behaves in enclosed systems like spacecraft.
One of the wearable carbon dioxide monitors clipped to the wall near a crew sleeping compartment. Radiation in real time
EVARM, an investigation from CSA (Canadian Space Agency), used small wireless dosimeters carried in a pocket to measure radiation exposure during spacewalks. The data showed that this method is a feasible way to measure radiation exposure, which could help focus routine dosage monitoring where it is most needed. Any shielding and countermeasures developed also could help protect people who work in high-radiation areas on Earth.
ESA’s Active Dosimeter tested a radiation dosimeter worn by crew members to measure changes in their exposure over time based on the space station’s orbit and altitude, the solar cycle, and solar flares. Measurements from the device allowed researchers to analyze radiation dosage across an entire space mission.
ESA astronaut Thomas Pesquet holds one of the mobile units for the Active Dosimeter study.NASA The Active Dosimeter also was among the instruments used to measure radiation on NASA’s Orion spacecraft during its 25.5-day uncrewed Artemis I mission around the Moon and back in 2022.
Another device tested on the space station and then on Artemis I, AstroRad Vest is designed to protect astronauts from solar particle events. Researchers used these and other radiation measuring devices to show that Orion’s design can protect its crew from potentially hazardous radiation levels during lunar missions.
The International Space Station serves as an important testbed for these technologies and many others being developed for future missions to the Moon and beyond.
Melissa Gaskill
International Space Station Research Communications Team
Johnson Space Center
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By NASA
4 min read
NASA’s Swift Studies Gas-Churning Monster Black Holes
A pair of monster black holes swirl in a cloud of gas in this artist’s concept of AT 2021hdr, a recurring outburst studied by NASA’s Neil Gehrels Swift Observatory and the Zwicky Transient Facility at Palomar Observatory in California. NASA/Aurore Simonnet (Sonoma State University) Scientists using observations from NASA’s Neil Gehrels Swift Observatory have discovered, for the first time, the signal from a pair of monster black holes disrupting a cloud of gas in the center of a galaxy.
“It’s a very weird event, called AT 2021hdr, that keeps recurring every few months,” said Lorena Hernández-García, an astrophysicist at the Millennium Institute of Astrophysics, the Millennium Nucleus on Transversal Research and Technology to Explore Supermassive Black Holes, and University of Valparaíso in Chile. “We think that a gas cloud engulfed the black holes. As they orbit each other, the black holes interact with the cloud, perturbing and consuming its gas. This produces an oscillating pattern in the light from the system.”
A paper about AT 2021hdr, led by Hernández-García, was published Nov. 13 in the journal Astronomy and Astrophysics.
The dual black holes are in the center of a galaxy called 2MASX J21240027+3409114, located 1 billion light-years away in the northern constellation Cygnus. The pair are about 16 billion miles (26 billion kilometers) apart, close enough that light only takes a day to travel between them. Together they contain 40 million times the Sun’s mass.
Scientists estimate the black holes complete an orbit every 130 days and will collide and merge in approximately 70,000 years.
AT 2021hdr was first spotted in March 2021 by the Caltech-led ZTF (Zwicky Transient Facility) at the Palomar Observatory in California. It was flagged as a potentially interesting source by ALeRCE (Automatic Learning for the Rapid Classification of Events). This multidisciplinary team combines artificial intelligence tools with human expertise to report events in the night sky to the astronomical community using the mountains of data collected by survey programs like ZTF.
“Although this flare was originally thought to be a supernova, outbursts in 2022 made us think of other explanations,” said co-author Alejandra Muñoz-Arancibia, an ALeRCE team member and astrophysicist at the Millennium Institute of Astrophysics and the Center for Mathematical Modeling at the University of Chile. “Each subsequent event has helped us refine our model of what’s going on in the system.”
Since the first flare, ZTF has detected outbursts from AT 2021hdr every 60 to 90 days.
Hernández-García and her team have been observing the source with Swift since November 2022. Swift helped them determine that the binary produces oscillations in ultraviolet and X-ray light on the same time scales as ZTF sees them in the visible range.
The researchers conducted a Goldilocks-type elimination of different models to explain what they saw in the data.
Initially, they thought the signal could be the byproduct of normal activity in the galactic center. Then they considered whether a tidal disruption event — the destruction of a star that wandered too close to one of the black holes — could be the cause.
Finally, they settled on another possibility, the tidal disruption of a gas cloud, one that was bigger than the binary itself. When the cloud encountered the black holes, gravity ripped it apart, forming filaments around the pair, and friction started to heat it. The gas got particularly dense and hot close to the black holes. As the binary orbits, the complex interplay of forces ejects some of the gas from the system on each rotation. These interactions produce the fluctuating light Swift and ZTF observe.
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Watch as a gas cloud encounters two supermassive black holes in this simulation. The complex interplay of gravitational and frictional forces causes the cloud to condense and heat. Some of the gas is ejected from the system with each orbit of the black holes. F. Goicovic et al. 2016 Hernández-García and her team plan to continue observations of AT 2021hdr to better understand the system and improve their models. They’re also interested in studying its home galaxy, which is currently merging with another one nearby — an event first reported in their paper.
“As Swift approaches its 20th anniversary, it’s incredible to see all the new science it’s still helping the community accomplish,” said S. Bradley Cenko, Swift’s principal investigator at NASA’s Goddard Space Flight Center in Greenbelt, Maryland. “There’s still so much it has left to teach us about our ever-changing cosmos.”
NASA’s missions are part of a growing, worldwide network watching for changes in the sky to solve mysteries of how the universe works.
Goddard manages the Swift mission in collaboration with Penn State, the Los Alamos National Laboratory in New Mexico, and Northrop Grumman Space Systems in Dulles, Virginia. Other partners include the University of Leicester and Mullard Space Science Laboratory in the United Kingdom, Brera Observatory in Italy, and the Italian Space Agency.
Download high-resolution images and videos.
By Jeanette Kazmierczak
NASA’s Goddard Space Flight Center, Greenbelt, Md.
Media Contact:
Claire Andreoli
301-286-1940
claire.andreoli@nasa.gov
NASA’s Goddard Space Flight Center, Greenbelt, Md.
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Last Updated Nov 13, 2024 Editor Jeanette Kazmierczak Related Terms
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By NASA
5 min read
Preparations for Next Moonwalk Simulations Underway (and Underwater)
Artist’s concept of a future airliner based on the NASA Advanced Aircraft Concepts for Environmental Sustainability 2050 submission from awardee Electra. The team’s project focuses on electric propulsion, integrated aircraft technologies, and vehicle design.Electra Picture yourself at an airport a few decades from now. What does your airliner look like? It’s more efficient, with lower emissions than today’s aircraft – what kinds of designs or technology make that possible? NASA is working to answer those questions by commissioning five new design studies looking to push the boundaries of possibility for sustainable aircraft.
Through NASA’s Advanced Aircraft Concepts for Environmental Sustainability (AACES) 2050 initiative, the agency asked industry and academia to come up with studies looking at aircraft concepts, key technologies, and designs that could offer the transformative solutions needed to secure commercial aviation’s sustainable future by 2050. NASA issued five awards, worth a total of $11.5 million, to four companies and one university. These new NASA-funded studies will help the agency identify and select promising aircraft concepts and technologies for further investigations.
Artist’s concept of a future airliner based on the NASA Advanced Aircraft Concepts for Environmental Sustainability 2050 submission from awardee Georgia Institute of Technology. The team’s project focuses on exploring scenarios and technologies based on an aircraft concept the institute has developed, known as ATH2ENA.Georgia Institute of Technology “Through initiatives like AACES, NASA is positioned to harness a broad set of perspectives about how to further increase aircraft efficiency, reduce aviation’s environmental impact and enhance U.S. technological competitiveness in the 2040s, 2050s, and beyond,” said Bob Pearce, NASA associate administrator for the Aeronautics Research Mission Directorate. “As a leader in U.S. sustainable aviation research and development, these awards are one example of how we bring together the best ideas and most innovative concepts from the private sector, academia, research agencies, and other stakeholders to pioneer the future of aviation.”
For decades, NASA has connected government agencies, industry, and academia to develop sustainable aviation technologies. In 2021, NASA launched its Sustainable Flight National Partnership, focused on technologies that could be incorporated into aircraft by the 2030s. The partnership’s research and development led to current NASA work including the experimental X-66 Sustainable Flight Demonstrator aircraft, its Electrified Powertrain Flight Demonstration project, and the development of more efficient engine cores and processes for the rapid manufacturing of lightweight composite materials.
Artist’s concept of a Pratt & Whitney advanced propulsion concept for the NASA Advanced Aircraft Concepts for Environmental Sustainability 2050 initiative. The Pratt & Whitney project focuses on commercial aviation propulsion technologies targeting thermal and propulsive efficiency improvements to reduce fuel consumption and greenhouse gas emissions.Pratt & Whitney The new AACES awards are initiating a similar process, but on a longer timeline, focusing on technologies to help transform aviation beyond SFNP with aircraft that could enter service by 2050. The kinds of partnerships NASA develops through SFNP and AACES are critical for the agency to support the U.S. goal of net-zero aviation emissions by 2050 and to help put aviation on a path toward energy-resilience.
“The AACES 2050 solicitation drew significant interest from the aviation community and as a result the award process was highly competitive,” said Nateri Madavan, director for NASA’s Advanced Air Vehicles Program. “The proposals selected come from a diverse set of organizations that will provide exciting and wide-ranging explorations of the scenarios, technologies, and aircraft concepts that will advance aviation towards its transformative sustainability goals.”
An artist’s concept of JetZero’s blended wing body, which the company’s team will use to evaluate technologies for the NASA Advanced Aircraft Concepts for Environmental Sustainability 2050 initiative. JetZero’s project will explore technologies that enable cryogenic, liquid hydrogen to be used as a fuel for commercial aviation to reduce greenhouse gas emissions.JetZero The AACES 2050 awards went to organizations that will form networks of university and corporate partners to advance their studies. NASA expects the awardees to complete their studies by mid-2026. The new awardee institutions are:
Aurora Flight Sciences, a Boeing Company, whose team will perform a comprehensive, “open-aperture” exploration of technologies and aircraft concepts for the 2050 timeframe. This will include examining new alternative aviation fuels, propulsion systems, aerodynamic technologies, and aircraft configurations along with other technology areas that arise throughout the study. The Electra-led team will explore extending Electra’s novel distributed electric propulsion and its unique aerodynamic design capabilities to develop innovative wing and fuselage integrations that deliver sustainable aviation focused on enabling community-friendly emission reduction, noise reduction, and improved air travel access. The company’s existing small aircraft prototype has been flying for over a year, demonstrating Electra’s technology that aims to transform air travel with reduced environmental impact and improved operational efficiency. Georgia Institute of Technology will perform a comprehensive exploration of sustainability technologies, including alternative fuels, propulsion systems, and aircraft configurations. The institute’s team will then explore new aircraft concepts incorporating the selected technologies with their Advanced Technology Hydrogen Electric Novel Aircraft (ATH2ENA) as a starting point. JetZero will explore technologies that enable cryogenic, liquid hydrogen to be used as a fuel for commercial aviation to reduce greenhouse gas emissions. These technologies will be evaluated on both tube-and wing and JetZero’s blended wing body – an airplane shape that provides more options for larger hydrogen fuel tanks within the aircraft. Pratt and Whitney a division of RTX Corporation, will explore a broad suite of commercial aviation propulsion technologies targeting thermal and propulsive efficiency improvements to reduce fuel consumption and greenhouse gas emissions. The Pratt & Whitney team will then down-select high-priority and alternative propulsion concepts for potential integration studies with various airframe concepts for aircraft in 2050 and beyond. Artist’s concept of a 50-60 passenger hydrogen fuel cell electric plane created by Boeing through its future flight concept efforts. Aurora Flight Sciences, a Boeing Company, received an award through NASA’s Advanced Aircraft Concepts for Environmental Sustainability (AACES) 2050 initiative to examine new alternative aviation fuels propulsion systems, aerodynamic technologies, and aircraft configurations, along with other technology areas.Boeing AACES 2050 is part of NASA’s Advanced Air Transport Technology project, which explores and develops technology to further NASA’s vision for the future development of fixed-wing transport aircraft with revolutionary energy efficiency. The project falls under NASA’s Advanced Air Vehicles Program, which evaluates and develops technologies for new aircraft systems and explores promising air travel concepts.
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Last Updated Nov 12, 2024 EditorLillian GipsonContactJim Bankejim.banke@nasa.gov Related Terms
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By NASA
Vanessa Wyche, director of NASA’s Johnson Space Center provides an update on Exploration Park on Feb. 15, 2022, at the ASCENDxTexas conference at South Shore Harbor Resort and Conference Center. Credit: NASA / Josh Valcarcel Nov. 12, 2024
Director Vanessa Wyche of NASA’s Johnson Space Center in Houston will join Texas A&M University leaders and guests Friday, Nov. 15, to break ground for the new Texas A&M University Space Institute.
U.S. media interested in participating in person must contact the NASA Johnson newsroom no later than 5 p.m. Wednesday, Nov. 13, by calling 281-483-5111 or emailing: jsccommu@mail.nasa.gov. NASA’s media accreditation policy is available online.
The groundbreaking is planned for 10 a.m. CST Nov. 15, at Johnson Space Center’s Exploration Park. Additional participants will include:
Greg Bonnen, Texas House of Representatives, chairman of House Appropriations Committee William Mahomes, Jr., Board of Regents chairman, Texas A&M University System John Sharp, chancellor Texas A&M University System General (Ret.) Mark Welsh III, president, Texas A&M University Robert H. Bishop, vice chancellor and dean, Texas A&M Engineering Nancy Currie-Gregg, director, Texas A&M University Space Institute Robert Ambrose, associate director for space and robotics initiatives, Texas A&M Engineering Experiment Station The institute, funded through a $200 million initial investment from the State of Texas, will support research for civilian, defense and commercial space missions as part of NASA Johnson’s Exploration Park. Key features will include the world’s largest indoor simulation spaces for lunar and Mars surface operations, state-of-the-art high-bay laboratories, and multifunctional project rooms.
The Texas A&M Space Institute is set to open in Summer 2026.
NASA is leasing the 240-acre Exploration Park to create facilities that enable a collaborative development environment, increase commercial access, and enhance the United States’ commercial competitiveness in the space and aerospace industries.
To learn more about NASA Johnson and the Texas A&M University Space Institute, visit:
https://www.nasa.gov/nasas-johnson-space-center-hosts-exploration-park
-end-
Kelly Humphries
Johnson Space Center, Houston
281-483-5111
kelly.o.humphries@nasa.gov
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By NASA
Name: Matthew Kowalewski
Title: Dragonfly Mass Spectrometer (DraMS) Lead Instrument Systems Engineer
Formal Job Classification: Aerospace Engineer
Organization: Instrument and Payload Systems Engineering Branch (Code 592)
Matthew Kowalewski is the lead instrument systems engineer for NASA’s Dragonfly Mass Spectrometer (DraMS). Photo courtesy of Matthew Kowalewski What do you do and what is most interesting about your role here at Goddard?
As the DraMS lead instrument systems engineer for NASA’s Dragonfly mission, I lead the coordinated technical development, integrating systems and making sure communications across subsystems is maintained within the instruments as well as with the lander. I enjoy the diversity and complexity of this instrument.
What do you enjoy most about your current position as the DraMS lead instrument systems engineer?
I started this position in March 2023 and it has been like drinking from a fire hose ever since, but in a good way. The complexity of the instrument and the number of subsystems means this is really three separate instruments in one, and that makes my job exciting. I have to keep up with a range of disciplines across everything that Goddard does including mechanisms, lasers, mass spectrometers, gas flow systems, mechanical systems, thermal systems and electrical systems.
I am always challenged and excited by those challenges too. Everything we do is necessary to meet the broad science requirements. Our goal is studying prebiotic chemistry on the surface of Titan.
What is your educational background? Why did you become an aerospace engineer?
I have a B.A. in astronomy and physics from Boston University and a master’s in physics from Johns Hopkins University.
As a child, I was more interested in astronomy and physics. In college, I developed an extreme interest in experimental physics including the engineering required to perform these experiments.
How did you come to Goddard?
After college, I worked in missile defense for a private company supporting the Midcourse Space Experiment. After three years, in 1998, my wife and I wanted to move closer to family, so I came to Goddard as an instrument engineer supporting the Total Ozone Mapping Spectrometer-Earth Probe (TOMS/EP) mission. I have also supported the Ozone Monitoring Instrument on Aura, The Ozone Mapping Profiler Suite (OMPS) on Suomi NPP and JPSS, various airborne field campaigns, and the New Opportunities Office.
What interesting field work did you do prior to joining DraMS?
I largely did field work supporting Earth science research and new business development. We flew remote sensing instruments on high altitude aircraft in the United States, Costa Rica, South Korea [whose official name is the Republic of Korea], and Canada. Most field campaigns lasted about a month where we were housed in hotels or military bases. While supporting the New Opportunities Office, we developed instrument and mission concepts, evaluated and prioritized technologies, and fostered relationships with industry, universities, and other government organizations.
How do you lead across multiple teams?
I lead a large team engineers and technicians spanning across over six teams. Communication is the key. I rely on the expertise of our systems team and all of the subsystem leads. We have daily and weekly meetings where everyone is heard and they are free to approach me whenever they have concerns.
I try to encourage open discussions including contrarian thoughts and ideas. I listen to all the options and opinions in an attempt to make the best-informed decision. Then I move forward with my decision.
In a cost- and schedule-constrained environment, like most missions are, we cannot get stuck in the decision-making process. At some point, a decision needs to be made and the team then moves forward.
Where have you traveled for work?
I have been to multiple NASA centers and military bases in this country. In addition to Costa Rica, South Korea and Canada, I have also been to the Netherlands and France for mission development.
What is the most memorable moment you have had at Goddard?
In 2003, I was supporting the space shuttle Columbia mission, STS-107. We had a small payload in the shuttle cargo bay called a Hitchhiker. I was second shift in the Hitchhiker mission operations center. I got to interact with the astronauts both prelaunch and on orbit. It meant a lot to me. My last shift was just prior to their reentry. It really impacted me when I learned, after my shift, that the shuttle disintegrated with all hands lost.
I had the honor of meeting these astronauts. It reminded me of the importance of the work that we do as we continue sending astronauts into orbit for missions.
When you mentor someone, what do you advise them to do?
I tell them to learn as much about everything that they can. For example, if they are an engineer, they should learn about science and other disciplines because a broad knowledge base will help them in the future. They will also learn why building a small piece of hardware is important for accomplishing the mission’s science goals. An electrical engineer building a circuit is actually building something for a far larger purpose.
It is also very important to get along with others. We work with others every day, in all aspects of our lives, and we have to understand their perspectives and respect their opinions. There is more to our jobs than building things. Establishing relationships with others is what truly allows us to accomplish our goals.
What do you do for fun?
I have four kids and enjoy spending time with them. I coach soccer, mentor a robotics club, and participate in endurance swim races. This is my second year as a mentor to my son’s robotics club, which participates in an annual, national robotics competition to build a robot from scratch. This year we have a highly mobile, fast robot with a multi-jointed arm to manipulate objects. I think we have a good shot at going to nationals.
Who would you like to thank?
I wish to thank my wife Angie for supporting me over all these years as my career developed. She was often home alone with four kids during long stints of travel. I would not be where I am without her.
I also owe much to my mentors, Scott Janz, Glenn Jaross, and Jay Al-Saadi for all their guidance, support and opportunities over the many years. Nobody can work alone, no matter how smart you are.
What is your “five-word or phrase memoir”? A five-word or phrase memoir describes something in just five words or phrases.
Understanding. Compassionate. Persistent. Hard-working. Curious about too many things.
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 Nov 12, 2024 EditorRob GarnerContactRob Garnerrob.garner@nasa.govLocationGoddard Space Flight Center Related Terms
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