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By NASA
2 min read
Preparations for Next Moonwalk Simulations Underway (and Underwater)
ESI24 Nam Quadchart
SungWoo Nam
University of California, Irvine
Lunar dust may seem unimposing, but it presents a significant challenge for space missions. Its abrasive and jagged particles can damage equipment, clog devices, and even pose health risks to astronauts. This project addresses such issues by developing advanced coatings composed of crumpled nano-balls made from atomically thin 2D materials such as MoS₂, graphene, and MXenes. By crumpling these nanosheets—much like crumpling a piece of paper—we create compression and aggregation resistant particles that can be dispersed in sprayable solutions. As a thin film coating, these crumpled nano-balls form corrugated structures that passively reduce dust adhesion and surface wear. The deformable crumpled nano-ball (DCN) coating works by minimizing the contact area between lunar dust and surfaces, thanks to its unique nano-engineered design. The 2D materials exhibit exceptional durability, withstanding extreme thermal and vacuum environments, as well as resisting radiation damage. Additionally, the flexoelectric and electrostatically dissipative properties of MoS₂, graphene, and MXenes allow the coating to neutralize and dissipate electrical charges, making them highly responsive to the charged lunar dust environment. The project will be executed in three phases, each designed to bring the technology closer to real-world space applications. First, we will synthesize the crumpled nano-balls and investigate their adhesion properties using advanced microscopy techniques. The second phase will focus on fundamental testing in simulated lunar environments, where the coating will be exposed to extreme temperatures, vacuum, radiation, and abrasion. Finally, the third phase will involve applying the coating to space-heritage materials and conducting comprehensive testing in a simulated lunar environment, targeting up to 90% dust clearance and verifying durability over repeated cycles of dust exposure. This research aligns with NASA’s goals for safer, more sustainable lunar missions by reducing maintenance requirements and extending equipment lifespan. Moreover, the potential applications extend beyond space exploration, with the technology offering promising advances in terrestrial industries such as aerospace and electronics by providing ultra-durable, wear-resistant surfaces. Ultimately, the project contributes to advancing materials science and paving the way for NASA’s long-term vision of sustainable space exploration.
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Space Technology Mission Directorate
STMD Solicitations and Opportunities
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By NASA
2 min read
Preparations for Next Moonwalk Simulations Underway (and Underwater)
ESI24 Zhai Quadchart
Lei Zhai
University of Central Florida
Lunar dust, with its chemical reactivity, electrostatic charge, and potential magnetism, poses a serious threat to astronauts and equipment on the Moon’s surface. To address this, the project proposes developing structured coatings with anisotropic surface features and electrostatic dissipative properties to passively mitigate lunar dust. By analyzing lunar dust-surface interactions at multiple scales, the team aims to optimize the coatings’ surface structures and physical properties, such as Young’s modulus, electrical conductivity, and polarity. The project will examine tribocharging, external electric fields, and the effects of particle shapes and sizes. Numerical sensitivity analyses will complement simulations to better understand lunar dust dynamics. Once fabricated, the coatings will be tested under simulated lunar conditions. The team will employ a state-of-the-art nanoscale force spectroscopy system, using atomic force microsope (AFM) microcantilevers functionalized with regolith to measure dust-surface interactions. Additional experiments will assess particle adhesion and removal, with scanning electron microscopy used to analyze remaining dust. This project aims to provide insights into surface structure effects on dust adhesion, guiding the creation of lightweight, durable coatings for effective dust mitigation. The findings will foster collaborations with NASA and the aerospace industry, while offering training opportunities for students entering the field.
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Keep Exploring Discover More Topics From STRG
Space Technology Mission Directorate
STMD Solicitations and Opportunities
Space Technology Research Grants
About STRG
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By Space Force
Suicide prevention is a top military priority every day, but takes on even greater focus each September, designated since 2008 as National Suicide Prevention month.
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By NASA
On 5/13/24, in alignment with the NASA Interagency Agreement with the US Department of State Advancing Science, Technology, Engineering, and Math in Bhutan through Increased Earth Observation Capacity, Aparna R. Phalke, Sarah Cox and Tony Kim (ST11) traveled to Thimphu, Bhutan, to represent the SERVIR SCO at the official launch on 5/17/24 of the “Farm Action Toolkit” service (https://crops.servirglobal.net/dashboard/) with the implementing partners from Bhutan Druk Holdings and Investments (DHI) Super Fablab, National Statistical Bureau (NSB), Department of Agriculture, National Center of Organic Agriculture, National Land Commission and GovTech Bhutan. The service was presented with meaningful opening remarks from Manish Rai (DHI), Andrea Goodman (U.S. Department of State), Sangay Dorji (Retired Head of the Environmental Office, Ministry of Economic Affairs) and Tony Kim . Also in attendance were Bhutan Foundation officials in addition to implementing partners. The “Farm Action Toolkit” co-developed by SERVIR and Bhutan’s implementing partners to support their mission on self-sufficiency for food and save operational costs. This service provides field-scale (30-m) crop area and yields related products and algorithms including 2002 to 2023 crop/non crop maps, rice area maps, maize area maps and rice yield estimations.
Following the launch of the Farm Action Toolkit service in Thimphu, Bhutan, a SERVIR SCO service team led by Aparna Phalke and Bhutan’s implementing partner team from DHI performed field surveys of agricultural fields across the Thimphu, Punakha and Paro area of Bhutan using GPS, and Helmet data collection with GoPro cameras and drones (5/23-25/24). The Helmet data collection with GoPro cameras tool method was replicated from SERVIR’s Applied Science Team PI Catherine Nakalemb’s project in SERVIR-West Africa. The team also interviewed individual farmers from areas covering rice cultivation with pest, disease and water related issues. The implementing partner and SERVIR SCO team also collected market analysis data consisting of fifty plus vendors and vendors cum farmers interviews on agricultural commodities and the supply chain (5/18-19/24). These field surveys will play a significant role in the operation and adoption of the Farm Action Toolkit service by implementing partners
In-person outreach events were conducted at the Royal Thimphu College and College of Natural Resources, Royal University of Bhutan (RUB) on 5/14/24 and 5/24/24, respectively. Over 100 students from each academic institution participated in the outreach events, which focused on NASA milestones and how to leverage Earth observations to address immediate environmental issues in Bhutan.
These activities are part of a NASA Interagency Agreement with the US Department of State – Advancing Science, Technology, Engineering, and Math in Bhutan through Increased Earth Observation Capacity – a collaboration that also includes NASA’s DEVELOP, ARSET, and GLOBE programs.
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By Space Force
Buckley Space Force Base is one of many locations across the Department of Defense where wildlife biologists are working to monitor and restore habitats for monarchs butterflies to help facilitate this migration.
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