Electrodynamic Dust Shield (EDS)¶
Blue Ghost Mission 1 · landed · NASA payload
Active dust removal with no moving parts: electrodes make a travelling electric field that lifts dust off a surface. On Blue Ghost it cleaned a glass surface and a thermal-radiator surface on a fifth lander leg. It also kept a camera lens clean, and 're-dusters' could throw dust onto the surfaces if the landing did not.
PI: Charles Buhler (NASA Kennedy); earlier EDS work led by Carlos Calle
Built by: Electrostatics and Surface Physics Laboratory, NASA Kennedy Space Center (NASA center)
| Technology | dust mitigation (active, electrodynamic) |
| Moon Base need | #0801 (Close to NASA-named. NASA's Moon to Mars area list, as matched in the knowledge base, puts 'electrodynamic dust shields' under lunar dust-tolerant systems and dust mitigation, which is gap #0801 (rated 1 of 57); the pairing of that area with #0801 is the knowledge base's. TechPort says the lunar demonstration addressed STMD's active dust solution gaps. The guide's long-duration technology challenge asks for dust mitigation systems. The tie to the solar power challenge (dust on arrays and radiators) is the study's reading.) |
| Route onto CLPS | STMD; An STMD payload (Game Changing Development, under the Lunar Surface Innovation Initiative's dust mitigation effort), not from the 2019 LSITP call. TechPort says the CLPS program selected it as one of the 10 payloads of task order 19D; NASA named it among the 10 when it awarded 19D to Firefly on 4 Feb 2021. The exact selection date is not public.; by 2021-02-04 |
| Timeline | first funding 2002 (Kennedy EDS work begins; funding not stated); first flight test by 2009 (reduced-gravity aircraft); selected by 2021-02-04 (named on TO 19D); GCD project from 2020-10-01; launch 2025-01-15; landing 2025-03-02 |
| On the Moon | operated as planned |
| FO | related |
Flights before the Moon¶
- aircraft (not FO): NASA C-9 and Zero Gravity Corporation Boeing 727-200 reduced-gravity aircraft, with a vacuum chamber, Kennedy with Langley support, by 2009 (the flight paper is from 2009). The glass (ITO) dust shield at simulated lunar gravity and vacuum, with simulant and Apollo 16 dust: it cleared particles up to 450 µm. Before FO's program began; not FO flights.
"on the NASA C-9 aircraft and also the Zero G Corporation Boeing 727-200"
— NTRS 20150016082, section 4 (Johansen et al. 2015)"in Aerospace conference, 2009 IEEE"
— NTRS 20150016082, reference 26 (Calle et al., 'Reduced gravity flight demonstration of the dust shield technology for optical systems')
- ISS or MISSE: MISSE-11 on the ISS exterior (MISSE flight facility), with a Data Communications Unit from Alpha Space, 2019-04 (launch) to about 2020-04. Twelve EDS panels (glass, polyimide, spacesuit fabric), two of them active and run several times a day, exposed to low Earth orbit for about a year to check materials and processes. FO selected it in FY2017 among NASA's MISSE-11 specimens. Early results: hardware performing nominally. Not the lunar unit.
"In April 2019, the EDS experiment was launched to the International Space Station (ISS) for space envi- ronment testing."
— NTRS 20205006073, IAC-19 paper"Preliminary results and photos indicate that the EDS hardware is performing nominally."
— NTRS 20205006073, Conclusion"Electrodynamic Dust Shield Experiment NASA’s Kennedy Space Center"
— nasa.gov: flightopportunities-2017-annualreport-508-highres.pdf, FY2017 report p. 25, MISSE-11 list
- ISS or MISSE: International Space Station, MISSE-15 (MISSE Flight Facility), 2021. A second MISSE flight of EDS material samples, after MISSE-11; the Kennedy team's own timeline lists MISSE-11 and MISSE-15 together as the flights that tested EDS materials in space and matured the power supply design. Details of the MISSE-15 panels are not in the sources read.
"2020 and 2021 – MISSE-11 and MISSE-15 flights EDS material testing in space."
— NTRS 20250004631, slide 'EDS Development' (Buhler et al., 'Electrodynamic Dust Shield (EDS) to the MOON!', LSIC presentation)
- earlier lunar mission: Intuitive Machines Nova-C 'Odysseus' (IM-1), on Embry-Riddle's EagleCam, 2024-02. An EDS fitted to the EagleCam camera lenses under a Kennedy and Embry-Riddle cooperative agreement, to shake landing dust off the lenses after deployment. The Kennedy team's timeline lists it as a 2024 integrated EDS flight; whether it operated is not in the sources read (EagleCam returned no images after landing).
"2024 – Eagle Cam (2024) with ERAU [University led project] (IM1)"
— NTRS 20250004631, slide 'EDS Development'"NASA/Kennedy Space Center have signed a cooperative agreement to test an electrostatic dust removal system"
— Eagles to Land First Student Project on Moon to Snap Selfie of Lunar Landing
Heritage hardware¶
- design heritage (own prototypes and ISS experiment): Two decades of Kennedy EDS work, from self-cleaning solar panels to lenses, radiators and fabrics. The camera EDS was flight-qualified before; the lunar flight raised the glass and radiator EDS from TRL 5 to 7, by TechPort's closeout.
"These were prototypes that were successfully demonstrated and raised the Technology Readiness Level (TRL) from a 5 to a 7."
— TechPort project 116411, outcome"For the Camera EDS, the actual system was flight qualified and tested, but never demonstrated on the lunar surface until now"
— TechPort project 116411, outcome
Funding before the lunar flight¶
- Kennedy's Electrostatics and Surface Physics Laboratory: EDS research since 2002, with several universities. Amounts not public. (NASA Kennedy (various); from 2002): amount not in public sources
"has been developing and testing EDS technology for Moon and Mars applications since 2002"
— TechPort project 116411, outcome
- Kennedy IRAD, 'Electrodynamic Dust Shield for Lunar/ISS Experiment' (TechPort 32733): an ISS experiment and a footpad unit for a commercial lander. Amount not public. (KSC IRAD; 2014-10-01 to 2016-09-01): amount not in public sources
"Configuration 2 will also be mounted to the footpad of a commercial lander and tested on the lunar surface."
— TechPort project 32733, description
- Data Communications Unit for the ISS (MISSE-11) EDS experiment, bought from Alpha Space under NASA Johnson's MISSE contract (task order 80JSC017F0022). For the ISS experiment, not the lunar unit. Linked by the description. (NASA purchase (MISSE task order); 2017-07-26 to 2019-03-31): $226,165
"DATA COMMUNICATIONS UNIT (DCU) FOR THE ACTIVE ELECTRODYNAMIC DUST SHIELD (EDS) EXPERIMENT"
— USAspending.gov, award 80JSC017F0022, description; amount 226165.0
- STMD Game Changing Development, 'Dust Mitigation Demonstration' (TechPort 116411, Kennedy lead, with eight other NASA centers and Appalachian State University as supporting organizations): the lunar payload. Amount not public. (STMD GCD (Lunar Surface Innovation Initiative); 2020-10-01 to 2025-06-30): amount not in public sources
"Dust Mitigation Demonstration"
— TechPort project 116411, title; GCD, start 2020-10-01"was developed at Kennedy Space Center in Florida with funding from NASA’s Game Changing Development Program"
— NASA’s Dust Shield Successfully Repels Lunar Regolith on Moon - NASA, image article, March 2025
How it got onto CLPS¶
"The Commercial Lunar Payload System (CLPS) Program selected EDS as one of the 10 payloads for the CLPS-19D flight program."
— TechPort project 116411, outcome"The Electrodynamic Dust Shield (EDS), which will generate a non-uniform electric field using varying high voltage on multiple electrodes."
— NASA Selects Firefly Aerospace for Artemis Commercial Moon Delivery in 2023 - NASA, release 21-012, 4 Feb 2021"EDS was funded by the Space Technology Mission Directorate (STMD) Game Changing Development Program (GCD)."
— Electrodynamic Dust Shield Heading to Moon on Firefly Lander - NASA, EDS article, Jan 2025
On the Moon¶
The landing plume coated the glass EDS heavily; EDS then lifted the dust off the glass and the radiator surface. TechPort gives a lens clearing efficiency of 96.6%. The camera EDS, re-dusters and high-voltage supply all worked, each reaching TRL 7 by NASA's account.
"successfully lifted and removed lunar soil, or regolith, from surfaces using electrodynamic forces"
— NASA Science Continues After Firefly’s First Moon Mission Concludes - NASA"The overall clearing efficiency of the lens was estimated to be 96.6% during this lunar mission."
— TechPort project 116411, outcome"The Reduster system was successfully operated on the lunar surface"
— TechPort project 116411, outcome
FO's role¶
Grade: related. Grade unchanged (related). FO selected Kennedy's EDS experiment for MISSE-11 in FY2017, when FO managed NASA's MISSE selections. Added by this study: the MISSE-11 flight is confirmed (launched April 2019, about a year in orbit, hardware nominal in early results), and NASA bought its data unit from Alpha Space. It was the same technology and lab, but a set of test panels, not the lunar payload, and the sources do not say FO paid for the flight. EDS's earlier reduced-gravity flights (by 2009) were not FO's. FO's own pages do not count EDS as an FO-to-CLPS transition, and no FO TechPort project covers it.
FO flights: 0. FO's role was selection for MISSE-11; who paid for the MISSE-11 slot is not in public sources. No FO-bought suborbital flight of EDS was found.
"NASA’s Flight Opportunities program currently manages the selection of NASA-led research payloads for the MISSE program."
— nasa.gov: flightopportunities-2017-annualreport-508-highres.pdf, FY2017 report p. 22"Flight Opportunities announced the selection of NASA material specimens that will fly on the MISSE-10 and MISSE-11 missions"
— earlier finding of this study (not a public source)"The MISSE-11 EDS experiment consists of 12 EDS panels."
— NTRS 20205006073
Who built it¶
"Lead Development Organization: Electrostatics and Surface Physics Laboratory at NASA Kennedy Space Center (KSC)"
— TO19D Science Payloads - NASA Science"Payload PI: Charles Buhler"
— TO19D Science Payloads - NASA Science
Moon Base need¶
"dust-tolerant fabrics and electrodynamic dust shields"
— Moon to Mars knowledge base: Architecture technology gaps: all 57, MCO areas table"Develop mitigation systems and strategies to limit system degradation from lunar dust"
— Moon to Mars knowledge base: Moon Base technology and knowledge challenges, Headline challenge 2, technology challenge"The demonstration of the EDS on the lunar surface addressed STMD Active Dust Solutions Gaps 1047 and 521."
— TechPort project 116411, outcome, closed out 2025-06-01
Open questions¶
- Did FO pay for the EDS slot on MISSE-11, or only run the selection? Not in public sources.
- What did the MISSE-11 results (returned about April 2020) change in the lunar EDS design? Not in the sources read here.
- When and how was EDS chosen for TO 19D (before 4 Feb 2021)? TechPort says the CLPS program selected it; no date or call is given.
- What did STMD GCD spend on the lunar EDS? Not in public sources.