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By NASA
Exploring the unknown and preparing for humanity’s next giant leap really works up an appetite. Thankfully, employees at NASA’s Johnson Space Center in Houston can count on Tina Preyan to help them fuel up and stay focused.
Preyan is a food service specialist at Starport, a quality-of-life program that contributes to Johnson’s mission by providing employee services and activities that enhance work life and promote mental well-being and physical fitness. Part of the agency’s network of 12 NASA Exchanges — each located at a NASA center or facility — Starport offers everything from group fitness classes to retail shopping, with programs designed to engage, energize, and support the workforce.
Tina Preyan supports a NASA Exchange display at a Johnson Space Center event. Image courtesy of Tina Preyan Preyan oversees the on-site dining options at Johnson, from its cafés and food trucks to vending machines and mini markets. She helps set the budget for food services, creates monthly calendars of food offerings, schedules vendors and pop-up events, and ensures annual food safety inspections are conducted. She also works with teams across Johnson to order food and related supplies for NASA events.
“The best part of my job is working in customer service, meeting new NASA workers every day, and making everyone feel welcome and at home when coming to Johnson’s cafés,” she said.
Preyan has been a fixture at Johnson for the last 19 years. She previously worked at NASA’s Michoud Assembly Facility in New Orleans but transferred to Houston shortly after Hurricane Katrina hit the city in 2005. At Starport, she worked her way up from prep cook to lead cashier and then to lead assistant. She also served as the office’s administrative assistant before transitioning to her current role.
Tina Preyan poses for a photo with NASA astronauts Jessica Watkins and Victor Glover. Image courtesy of Tina Preyan Preyan has enjoyed meeting many NASA astronauts and Johnson team members and learning more about the work they do. The occasional celebrity sighting is another job perk.
Preyan is something of a celebrity herself. “So many employees know my name. I am proud of meeting so many people, and the love they give me every day just being here,” she said.
She was also proud to receive Starport’s Jackie Kingery Award in fall 2024. The award recognizes extraordinary customer service and exemplary dedication to the NASA Exchange mission at Johnson. “It felt amazing to receive this award and know that I am doing a great job in everyone’s eyes,” she said. “I value high integrity and am always willing to help others in the organization.”
Tina Preyan receives Starport’s Jackie Kingery Award from Starport Deputy Operations Manager Sam Miller in October 2024. Image courtesy of Tina Preyan Another source of pride for Preyan? Her son, Cameron, who is set to graduate from the University of Texas at San Antonio in May with a degree in Finance and Marketing.
In addition to her son’s graduation, Preyan looks forward to continuing her work in a positive environment and pursuing more growth opportunities.
“I’m going to stay busy and stay focused on ensuring proper procedures are being used by vendors,” she said. “And making sure all customers are happy and will continue to return to cafés.”
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By NASA
3 min read
Preparations for Next Moonwalk Simulations Underway (and Underwater)
From left, Ramon Pedoto, Nathan Walkenhorst, and Tyrell Jemison review information at NASA’s Marshall Space Flight Center in Huntsville, Alabama. The three team members developed new automation tools at Marshall for flight controllers working with the International Space Station (Credit: NASA/Tyrell Jemison Two new automation tools developed at NASA’s Marshall Space Flight Center in Huntsville, Alabama, are geared toward improving operations for flight controllers working with the International Space Station from the Huntsville Operations Support Center.
The tools, called AutoDump and Permanently Missing Intervals Checker, will free the flight control team to focus on situational awareness, anomaly response, and real-time coordination.
The space station experiences routine loss-of-signal periods based on communication coverage as the space station orbits the Earth. When signal is lost, an onboard buffer records data that could not be downlinked during that period. Following acquisition of signal, flight controllers previously had to send a command to downlink, or “dump,” the stored data.
The AutoDump tool streamlines a repetitive data downlinking command from flight controllers by detecting a routine loss-of-signal, and then autonomously sending the command to downlink data stored in the onboard buffer when the signal is acquired again. Once the data has been downlinked, the tool will automatically make an entry in the console log to confirm the downlink took place.
“Reliably and quickly sending these dump commands is important to ensure that space station payload developers can operate from the most current data,” said Michael Zekoff, manager of Space Systems Operations at Marshall.
As a direct result of this tool, we have eliminated the need to manually perform routine data dump commands by as much as 40% for normal operations.
Michael Zekoff
Space Systems Operations Manager
AutoDump was successfully deployed on Feb. 4 in support of the orbiting laboratory.
The other tool, known as the Permanently Missing Intervals Checker, is another automated process coming online that will improve team efficiency.
Permanently missing intervals are gaps in the data stream where data can be lost due to a variety of reasons, including network fluctuations. The missing intervals are generally short but are documented so the scientific community and other users have confirmation that the missing data is unable to be recovered.
“The process of checking for and documenting permanently missing intervals is challenging and incredibly time-consuming to make sure we capture all the payload impacts,” said Nathan Walkenhorst, a NASA contractor with Bailey Collaborative Solutions who serves as a flight controller specialist.
The checker will allow NASA to quickly gather and assess payload impacts, reduce disruptions to operations, and allow researchers to get better returns on their science investigations. It is expected to be deployed later this year.
In addition to Walkenhorst, Zekoff also credited Ramon Pedoto, a software architect, and Tyrell Jemison, a NASA contractor and data management coordinator with Teledyne Brown Engineering Inc, for their work in developing the automation tools. The development of the tools also requires coordination between flight control and software teams at Marshall, followed by extensive testing in both simulated and flight environments, including spacecraft operations, communications coverage, onboard anomalies, and other unexpected conditions.
“The team solicited broad review to ensure that the tool would integrate correctly with other station systems,” Zekoff said. “Automated tools are evaluated carefully to prevent unintended commanding or other consequences. Analysis of the tools included thorough characterization of the impacts, risk mitigation strategies, and approval by stakeholders across the International Space Station program.”
The Huntsville Operations Support Center provides payload, engineering, and mission operations support to the space station, the Commercial Crew Program, and Artemis missions, as well as science and technology demonstration missions. The Payload Operations Integration Center within the Huntsville Operations Support Center operates, plans, and coordinates the science experiments onboard the space station 365 days a year, 24 hours a day.
For more information on the International Space Station, visit:
www.nasa.gov/international-space-station/
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Last Updated Apr 11, 2025 EditorBeth RidgewayLocationMarshall Space Flight Center Related Terms
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By NASA
2 min read
Preparations for Next Moonwalk Simulations Underway (and Underwater)
Portrait of David Mitchell, Thursday, Jan. 27, 2022, NASA Headquarters Mary W. Jackson building in Washington.NASA/Bill Ingalls David Mitchell, the Associate Administrator for MSD.
Have you ever wondered how NASA manages to achieve all the incredible missions it does, like probing the Sun and studying the history of our Universe? We do it through teamwork, one of our core values. And an essential part of NASA’s team is what we call Mission Support. Mission Support makes sure NASA’s missions, centers, and programs have the capabilities and services they need to explore the unknown, innovate for the future, and inspire the world.
To illustrate Mission Support at NASA, look at the example of the Roman Space Telescope. It’s not just scientists and engineers who are making the telescope happen. The program works with NASA’s financial office to plan the budget for the telescope. Engineers design the telescope with tools developed in coordination with NASA’s shared services and information technology offices. NASA’s engineering authority checks the design, and international relations manages NASA’s collaborations with other countries on the telescope. All of this is Mission Support.
Of course, there is much more to Mission Support, but I think you get the picture. MSD enables Mission Support by:
Planning and executing the Mission Support budgets for safety, security, and mission services as well as construction and environmental management. Executing strategy and governance to ensure Mission Support is financially sound, aligned with the agency’s goals, and serving NASA’s missions. Addressing Mission Support’s financial, operational, legal, and reputational risks to ensure resilience and mission success. Working with mission directorates and centers to ensure NASA is prioritizing the Mission Support services they need most urgently to be successful. Integrating Mission Support services across the agency to maximize efficiency and effectiveness. Current and future missions require significant support to be successful. MSD is working today to ensure Mission Support is there for NASA to explore the unknown, innovate for the future, and inspire the world.
To learn more, visit MSD Organization.
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By NASA
3 min read
Preparations for Next Moonwalk Simulations Underway (and Underwater)
The International Space Station is pictured from the SpaceX Dragon spacecraft by a Crew-8 member shortly after undocking from the Harmony module’s space-facing port as the orbital outpost was soaring 272 miles above the cloudy Patagonia region of South America.NASA NASA is seeking proposals for two new private astronaut missions to the International Space Station, targeted for 2026 and 2027, as the agency continues its commitment to expanding access to space. These private missions enable American commercial companies to further develop capabilities and support a continuous human presence in low Earth orbit.
“We are in an incredible time for human spaceflight, with more opportunities to access space and grow a thriving commercial economy in low Earth orbit,” said Dana Weigel, program manager for the International Space Station at NASA’s Johnson Space Center in Houston. “NASA remains committed to supporting this expansion by leveraging our decades of expertise to help industry gain the experience needed to train and manage crews, conduct research, and develop future destinations. Private astronaut missions are a key part of this effort, providing companies with hands-on opportunities to refine their capabilities and build partnerships that will shape the future of low Earth orbit.”
The new flight opportunities will be the fifth and sixth private astronaut missions to the orbiting laboratory coordinated by NASA. The first three missions were accomplished by Axiom Space in April 2022, May 2023, and January 2024, with a fourth scheduled for no earlier than May 2025.
Each of the new missions may be docked to the space station for up to 14 days. Specific dates depend on spacecraft traffic at the space station and in-orbit activity planning and constraints. Private astronaut missions must be brokered by a U.S. entity and use U.S. transportation spacecraft that meet NASA’s International Space Station visiting vehicle requirements, policies, and procedures. For additional details, refer to Focus Area 4A of NASA Research Announcement (NRA) NNJ13ZBG001N.
Proposals are due by 5 p.m. EDT on Friday, May 30, 2025.
For solicitation information, visit:
https://www.nasa.gov/johnson/jsc-procurement/pam
For more than two decades, people have lived and worked continuously aboard the International Space Station, advancing scientific knowledge and demonstrating new technologies, making research breakthroughs not possible on Earth. The station is a critical testbed for NASA to understand and overcome the challenges of long-duration spaceflight and to expand commercial opportunities in low Earth orbit. As commercial companies focus on providing human space transportation services and destinations as part of a robust low Earth orbit economy, NASA’s Artemis campaign is underway at the Moon, where the agency is preparing for future human exploration of Mars.
Learn more about the International Space Station at:
https://www.nasa.gov/station
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By NASA
If you design a new tool for use on Earth, it is easy to test and practice using that tool in its intended environment. But what if that tool is destined for lunar orbit or will be used by astronauts on the surface of the Moon?
NASA’s Simulation and Graphics Branch can help with that. Based at Johnson Space Center in Houston, the branch’s high-fidelity, real-time graphical simulations support in-depth engineering analyses and crew training, ensuring the safety, efficiency, and success of complex space endeavors before execution. The team manages multiple facilities that provide these simulations, including the Prototype Immersive Technologies (PIT) Lab, Virtual Reality Training Lab, and the Systems Engineering Simulator (SES).
Lee Bingham is an aerospace engineer on the simulation and graphics team. His work includes developing simulations and visualizations for the NASA Exploration Systems Simulations team and providing technical guidance on simulation and graphics integration for branch-managed facilities. He also leads the branch’s human-in-the-loop Test Sim and Graphics Team, the Digital Lunar Exploration Sites Unreal Simulation Tool (DUST), and the Lunar Surface Mixed-Reality with the Active Response Gravity Offload System (ARGOS) projects.
Lee Bingham demonstrates a spacewalk simulator for the Gateway lunar space station during NASA’s Tech Day on Capitol Hill in Washington, D.C. Image courtesy of Lee Bingham Bingham is particularly proud of his contributions to DUST, which provides a 3D visualization of the Moon’s South Pole and received Johnson’s Exceptional Software of the Year Award in 2024. “It was designed for use as an early reference to enable candidate vendors to perform initial studies of the lunar terrain and lighting in support of the Strategy and Architecture Office, human landing system, and the Extravehicular Activity and Human Surface Mobility Program,” Bingham explained. DUST has supported several human-in-the-loop studies for NASA. It has also been shared with external collaborators and made available to the public through the NASA Software Catalog.
Bingham has kept busy during his nearly nine years at Johnson and said learning to manage and balance support for multiple projects and customers was very challenging at first. “I would say ‘yes’ to pretty much anything anyone asked me to do and would end up burning myself out by working extra-long hours to meet milestones and deliverables,” he said. “It has been important to maintain a good work-life balance and avoid overcommitting myself while meeting demanding expectations.”
Lee Bingham tests the Lunar Surface Mixed Reality and Active Response Gravity Offload System trainer at Johnson Space Center. Image courtesy of Lee Bingham Bingham has also learned the importance of teamwork and collaboration. “You can’t be an expert at everything or do everything yourself,” he said. “Develop your skills, practice them regularly, and master them over time but be willing to ask for help and advice. And be sure to recognize and acknowledge your coworkers and teammates when they go above and beyond or achieve something remarkable.”
Lee Bingham (left) demonstrates a lunar rover simulator for Apollo 16 Lunar Module Pilot Charlie Duke. Image courtesy of Lee Bingham He hopes that the Artemis Generation will be motivated to tackle difficult challenges and further NASA’s mission to benefit humanity. “Be sure to learn from those who came before you, but be bold and unafraid to innovate,” he advised.
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