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Lunar Assembly and Service by Autonomous Robotics (LASAR)

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Description

The LASAR project will develop a laser manufacturing platform that can be positioned 
autonomously via a robotic arm (Figure 1, left); we will demonstrate its utility by laser beam 
welding (LBW) and repairing structural joints for Lunar surface installation—Tall Lunar Tower 
(TLT) joints. LBW enables not only joining, but also repair and/or reinforcement of structures.
The laser manufacturing platform demonstrated by LASAR is also extensible to perform ablating,
bending/forming, cleaning, cutting, drilling, and additive manufacturing. The demonstration
“Snowflake” joint geometry is suitable to a multitude of different structures (Figure 1, right). The 
robotic arm will employ supervised autonomy by flight-forward computers to precisely position 
for operations without human intervention. These sub-systems will be space-rated to enable 
scalable operation on the Lunar surface. The robot arm will also have non-contact NDE –
electromagnetic acoustic transducer (EMAT) – integrated onto its end effector to inspect welds.
 

Benefits

NASA’s Artemis missions will have explorers face extreme challenges on the Lunar surface,
such as oblique lighting conditions, cryogenic shadows, extreme terrain limiting line-of-sight 
communication, radiation exposure, and impact shielding. These can be addressed via Lunar 
infrastructure: shelters (Lunar safe haven), blast shields, radiation shields, thermal shields, and 
towers for solar arrays, communication relays, & radiators.  
Currently, there are no deployable or manufacturing technologies ready to emplace scalable 
Lunar infrastructure. A long-term Lunar base will be enabled by the assembly and repair of surface 
structures, such as the power/communication tower of super gap 629 via an “autonomous robotic 
structure maintenance and repair system” (1411) that uses in-space welding (646). Related gaps 
include “structural systems designed to be robotically serviced and manufactured in-space” (1409)
which can be joined in-space (493) through advanced robotics (911), leveraging high-performance
spaceflight computing (526) for autonomous vertical assembly & construction (513, 618). Repair 
of Lunar infrastructure will also require closing the process inspection gap (421) by nondestructive evaluation (NDE). If Artemis 8—the first mission to emplace a permanent Lunar
surface habitat—requires In-space Servicing, Assembly & Manufacturing (ISAM) or repair and is 
scheduled for the early 2030s, then investment in lower TRL technologies such as in-space joining 
for assembly & repair via autonomous robotics is needed now to mature them in time for flight.
 

Details

ProgramEarly Career Initiative (ECI)
Lead organizationMarshall Space Flight Center, Huntsville, AL
Start date2024-10-01
End date2026-10-31

Project contacts

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How to get involved

This is a mature technology (TRL 7+) — the realistic path in is usually NASA's Technology Transfer Program: licensing an existing NASA patent, or a Space Act Agreement to use NASA facilities/expertise directly. NASA also runs a startup licensing program with no upfront fee for companies formed to commercialize a specific NASA technology.

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