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By NASA
2 Min Read Advanced Modeling Enhances Gateway’s Lunar Dust Defense
A sample holder in a vacuum chamber spins during a lunar dust adhesion test at NASA’s Johnson Space Center. Credits: NASA/Josh Litofsky NASA’s Artemis campaign aims to return humans to the Moon, develop a sustainable presence there, and lay the groundwork for the first crewed missions to Mars. As the agency prepares for longer stays on and around the Moon, engineers are working diligently to understand the complex behavior of lunar dust, the sharp, jagged particles that can cling to spacesuits and jam equipment.
Lunar dust has posed a problem since astronauts first encountered it during the Apollo missions. Ahead of more frequent and intense contact with dust, NASA is developing new strategies to protect equipment as astronauts travel between the Moon and spacecraft like Gateway, humanity’s first lunar space station.
Josh Litofsky, systems engineer at NASA’s Johnson Space Center, scoops material designed to behave like lunar dust to test how it adheres to Gateway materials. NASA/Bill Stafford Unlike Apollo-era spacecraft that faced lunar dust exposure just once, Gateway will encounter it each time a Human Landing System spacecraft returns to the space station from the lunar South Pole region. Dust could enter Gateway’s environment, risking damage to science instruments, solar arrays, robotic systems, and other important hardware.
Josh Litofsky is the principal investigator and project manager leading a Gateway lunar dust adhesion testing campaign at NASA’s Johnson Space Center in Houston. His team tracks how the dust interacts with materials used to build Gateway.
An artist’s rendering of the Gateway lunar space station in polar orbit around the Moon. NASA/Alberto Bertolin “The particles are jagged from millions of years of micrometeoroid impacts, sticky due to chemical and electrical forces, and extremely small,” Litofsky said. “Even small amounts of lunar dust can have a big impact on equipment and systems.”
Litofksy’s work seeks to validate the Gateway On-orbit Lunar Dust Modeling and Analysis Program (GOLDMAP), developed by Ronald Lee, also of Johnson Space Center. By considering factors such as the design and configuration of the space station, the materials used, and the unique conditions in lunar orbit, GOLDMAP helps predict how dust may move and settle on Gateway’s external surfaces.
Josh Litofsky, systems engineer at NASA’s Johnson Space Center, places a sample holder inside a vacuum chamber to test how lunar dust sticks to Gateway materials. NASA/Bill StaffordNASA/Bill Stafford Early GOLDMAP simulations have shown that lunar dust can form clouds around Gateway, with larger particles sticking to surfaces.
The data from these tests and simulations will help NASA safeguard Gateway, to ensure the space station’s longevity during the next era of lunar exploration.
The lessons learned managing lunar dust and other harsh conditions through Gateway and Artemis will prepare NASA and its international partners for missions deeper into the cosmos
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Last Updated Jan 22, 2025 ContactLaura RochonLocationJohnson Space Center Related Terms
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4 min read NASA Technology Helps Guard Against Lunar Dust
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International teams of astronauts will explore the scientific mysteries of deep space with Gateway, humanity’s first space station around the…
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By NASA
NASA Deputy Administrator Pam Melroy gives keynote remarks during the 37th Space Symposium, Tuesday, April 5, 2022, in Colorado Springs, Colorado. Photo Credit: (NASA/Bill Ingalls) The Rotary National Award for Space Achievement Foundation has selected NASA Deputy Administrator Pam Melroy, a retired United States Air Force colonel and former NASA astronaut, to receive the 2025 National Space Trophy on April 25 in Houston.
“This honor is not just a reflection of my journey but a testament to the incredible teams and visionaries I’ve been privileged to work alongside,” said Melroy. “Exploring space is the ultimate act of human aspiration, proving time and again that when we dream together, we achieve the impossible. Being selected for the National Space Trophy is a humbling reminder of how far we’ve come — and how much further we can go.”
Vanessa Wyche, director of NASA’s Johnson Space Center in Houston, who nominated Melroy alongside former NASA Johnson director Michael Coats, said, “Pam has brilliantly paved the way for future generations pursuing careers in STEM fields through her exemplary leadership, dedication to mission excellence, and integral contributions to the advancement of space exploration. I am thrilled and immensely proud that Pam is receiving this well-deserved recognition.”
Sworn in as NASA’s deputy administrator on June 21, 2021, Melroy assists NASA Administrator Bill Nelson on key agency decisions, defines the agency’s strategic vision, and represents NASA to key government and international partners.
Melroy first joined NASA as an astronaut in 1994 and holds the distinction of being only one of two women to command a space shuttle. She spent more than 38 days in space across three space shuttle missions, all contributing to the assembly of the International Space Station. She served as pilot for STS-92 in 2000 and STS-112 in 2002, and she commanded STS-120 in 2007.
After serving more than two decades in the U.S. Air Force and as a NASA astronaut, Melroy transitioned to leadership roles at Lockheed Martin, the Federal Aviation Administration, the Defense Advanced Research Projects Agency, and Nova Systems Pty, Australia. Additionally, she was as an advisor to the Australian Space Agency and a member of the National Space Council’s Users Advisory Group.
The Rotary National Award for Space Achievement Foundation invites members of the public and the aerospace community to attend the Space Awards gala where Melroy will be recognized with the National Space Trophy. For more information on Melroy, visit:
https://www.nasa.gov/people/nasa-deputy-administrator-pam-melroy/
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Amber Jacobson
Headquarters, Washington
202-358-1600
amber.c.jacobson@nasa.gov
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Last Updated Jan 14, 2025 LocationNASA Headquarters Related Terms
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By NASA
4 min read
Preparations for Next Moonwalk Simulations Underway (and Underwater)
Artist concept highlighting the novel approach proposed by the 2025 NIAC awarded selection of SUPREME-QG: Space-borne Ultra-Precise Measurement of the Equivalence Principle Signature of Quantum GravityNASA/Selim Shahriar Selim Shahriar
Northwestern University, Evanston
Progress in physics has largely been driven by the development and verification of new theories that unify different fundamental forces of nature. For example, Maxwell revolutionized physics with his unified theory of electricity and magnetism, and the Standard Model of particle physics provides a consistent description of all fundamental forces (electromagnetic, strong, and weak) except for gravity. The major barrier to completing the quest for unification is that General Relativity (GR), the current theory of gravity, cannot be reconciled with QM. Theories of Quantum Gravity (TQG), which are yet untested, prescribe modifications of both GR and QM in a manner that makes them consistent with each other. Tests of TQG represent arguably the greatest challenge facing our understanding of the Universe. The most promising way to test TQG is to search for violation of the Equivalence Principle (EP), a fundamental tenet of GR which states that all objects experience the same acceleration in a gravitational field. Violation of EP is characterized by a nonzero Eotvos parameter, Eta, defined as the ratio of the relative acceleration to the mean acceleration experienced by two objects with different inertial masses in a gravitational field. EP violations at the level of Eta < 10^(-18) arise in many versions of TQG (e.g., string theory). The most precise test of the EP to date has been carried out under the space-borne MICROSCOPE experiment employing classical accelerometers, constraining the value of Eta to <1.5×10^(-15). We propose to investigate the use of a radically new method that leverages quantum entanglement to test the EP with extreme precision, at the level of Eta ~ 10^(-20), using a space-borne platform. This method is described in a recent paper by us (PRD 108, 024011, ’23). It makes use of simultaneous Schroedinger Cat (SC) state atom interferometers (AIs) with two isotopes of Rb. Consisting of N=10^6 atoms, the SC state, which is a maximally entangled quantum state generated via spin-squeezing of cold atoms in an optical cavity, acts as a single particle, in a superposition of two collective states, enhancing the sensitivity by a factor of ~root(N)=10^3. Such large-N SC states are difficult to create and have not been observed yet, let alone leveraged for precision metrology. In another recent paper, we described a novel protocol, namely the generalized echo squeezing protocol (GESP), to overcome the challenges of creating such a state (PRA 107, 032610, ’23). We will demonstrate the functionality of this method in a testbed to enable a follow-on space-borne mission capable of testing the EP at the level of Eta ~ 10^(-20). If EP violation is observed, the version of TQG that agrees most closely with the result would form the foundation for a complete theory governing the universe, including its birth: the Big Bang. A null result would force physicists to conceive an entirely new approach to addressing the irreconcilability of GR and QM, fundamentally altering the course of theoretical physics. Either outcome would represent one of the greatest developments in our quest for understanding nature. The SC-state AI (SCAI), also holds the promise of revolutionary improvements in the precision of gravitational cartography and inertial navigation, when configured for simultaneous accelerometry and rotation sensing. The sensitivity of such a sensor, for one second averaging time, would be ~0.9 femto-g for accelerometry, and ~0.5 pico-degree/hour for rotation sensing. This would represent an improvement by a factor of ~10^5 over the best conventional accelerometer, and a factor of ~10^4 over the best conventional gyroscopes. As such, the SCAI would find widespread usage in defense as well as non-defense sectors, including deep-space exploration, for inertial navigation. A space-borne SCAI would be able to carry out gravitational cartography with a resolution far greater than that achieved using the GRACE-FO satellites.
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Last Updated Jan 10, 2025 EditorLoura Hall Related Terms
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By NASA
Kennedy Space Center Director and charter members of the Florida University Space Research Consortium signed a memorandum of understanding on Jan. 8, 2025. From left: Jennifer Kunz, Associate Director, Technical, Kennedy Space Center; Kelvin Manning, Deputy Director, Kennedy Space Center; Dr. Kent Fuchs, Interim President, University of Florida; Janet Petro, Director, Kennedy Space Center; Jeanette Nuñez, Florida Lieutenant Governor; Dr. Alexander Cartwright, President, University of Central Florida; Dr. Barry Butler, President, Embry-Riddle Aeronautical University. NASA/Kim Shiflett The future of research and technology at NASA’s Kennedy Space Center in Florida is expanding Wednesday, as Kennedy’s center director and charter members in the Florida University Space Research Consortium signed a memorandum of understanding in research and development to assist with missions and contribute to NASA’s Moon to Mars exploration approach.
Officials from the consortium – designated in 2024 as the state’s official space research entity – NASA leaders, and guests participated in the signing ceremony held at Kennedy, marking a critical milestone in a partnership to advance research, technology development, education, and communication between the spaceport and the state’s growing space industry.
“Through this agreement, NASA will benefit in new and exciting ways from our longtime partnership with the universities that make Florida shine,” said NASA Administrator Bill Nelson. “As we move deeper into this golden era of space exploration, a new generation of thinkers and leaders will lead the way – thinkers and leaders like the researchers, faculty, and students of the Artemis Generation, whom we are pleased to work with through the consortium.”
The creation of the consortium was the result of more than a year of effort by leaders at Kennedy, the University of Florida, the University of Central Florida, and Embry-Riddle Aeronautical University. The agreement highlights the partnership and serves as the official start to partnering activities, with Florida now the only state with a university consortium affiliated with one of NASA’s centers.
Present at the event was Florida Governor Ron DeSantis. “It was great to visit the Space Coast Jan. 8 to announce the Florida University Space Research Consortium—our state’s official space research entity. Home to a thriving aerospace industry and world-class higher education institutions, Florida is the ideal place to launch this initiative. We are primed to lead the nation in developing a blueprint for state-space partnerships into the future.”
The mission of the consortium is to foster a symbiotic relationship between NASA Kennedy and Florida’s universities to drive innovation in space exploration, research, and technology through academic collaboration, joint projects, and workforce development.
“The launch of the Florida University Space Research Consortium is a significant milestone for our state’s aerospace sector, bringing together our world-class education system with cutting edge research and development,” said Lieutenant Governor Jeanette Nuñez. “This consortium will undoubtedly further strengthen and deepen Florida’s position as the leader in the global aerospace economy.”
The memorandum of understanding marks the dawn of a new era of cooperation between the Florida spaceport and the state’s university system, starting with the three charter universities with plans to expand to other state universities interested in participating. The push to enhance research and technological collaboration with universities has been a priority at NASA for years and has seen success at other NASA centers across the country.
While Kennedy becomes the first NASA center affiliated with a university consortium, recently NASA’s Ames Research Center in California’s Silicon Valley partnered with University of California, Berkeley, on development of the Berkeley Space Center at NASA Research Park, located at Ames. Still in development, the project is envisioned as a 36-acre discovery and innovation hub to include educational spaces, labs, offices, student housing, and a new conference center. More recently, NASA’s Johnson Space Center in Houston teamed up with Texas A&M University to break ground on a building that will become a testing laboratory for apparatuses in development for NASA’s Moon to Mars plans. In attendance for the groundbreaking was Kennedy Space Center Director Janet Petro, who was one of the signatories on the agreement.
NASA’s Kennedy Space Center Director Janet Petro signs a memorandum of understanding between Kennedy Space Center and the Florida University Space Research Consortium on Jan. 8, 2025. NASA/Kim Shiflett “This agreement is a shining example of what it looks like when we link arms and create a space for the whole to be greater than all our parts,” said Petro. “This symbiotic partnership makes way for collaborative research opportunities and increased exposure to advanced technology, significantly enhancing NASA’s research output in fields such as aerospace engineering, materials science, robotics, and environmental science, all of which are necessary for long-term human exploration as we learn to live and work deeper into space than ever before.”
For more information about NASA Kennedy, visit:
https://www.nasa.gov/kennedy
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