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+--- Thread: Article DARPA robot can build stuff in space on its own (orbital construction) (/thread-21823.html)
DARPA robot can build stuff in space on its own (orbital construction) - C C - Nov 10, 2026
DARPA robot builds a structure in space for the first time, opening the door to giant orbiting spacecraft
https://thedebrief.org/darpa-robot-builds-a-structure-in-space-for-the-first-time-opening-the-door-to-giant-orbiting-spacecraft/
INTRO: For the first time, a robot has built part of a structure in space without astronauts assembling it, proving a technology that could eventually allow spacecraft, antennas, and enormous space telescopes to be built directly in orbit rather than launched from Earth as a single piece.
Developed by researchers at the California Institute of Technology (Caltech) and funded by the Defense Advanced Research Projects Agency (DARPA), the experimental robotic system successfully assembled a section of a lightweight antenna structure using individual components carried into orbit aboard a SpaceX rocket.
The achievement constitutes a significant milestone in DARPA’s Novel Orbital and Moon Manufacturing, Materials and Mass-efficient Design (NOM4D) program, which aims to develop technologies prepared to construct structures hundreds of meters, or potentially even kilometers, across.
“NOM4D’s objective is to enable efficient, scalable construction of very large structures in space,” DARPA program manager Andrew Detor said in a statement. “By ‘very large,’ I mean hundreds of meters or kilometers in scale. Nothing approaching that scale can be achieved today.”
The experimental system, called Autonomous In-Space Tensioned Reflector Assembly (ASTRA), launched into low-Earth orbit on March 30, 2026, aboard SpaceX’s Transporter-16 mission. Roughly the size of a large household refrigerator, the payload carried a robotic manipulator, composite fiber tubes, aluminum joints, and thin reflective material intended to form a 4.6-foot-wide antenna reflector.
Unlike conventional satellites, which are assembled on Earth and folded to fit inside a rocket, ASTRA was designed to construct its structure one section at a time after reaching orbit. The robot retrieves individual components from onboard dispensers, arranges them, and connects them into a fixed framework. It also attaches a lightweight reflective film before extending each completed section outward.
DARPA compares the approach to assembling structures using K’Nex or Tinkertoy construction sets. The underlying concept is fairly straightforward. Instead of launching a fully assembled satellite or telescope, future spacecraft could carry compact packages of structural components that robots assemble after reaching their destination.
Such an approach could eliminate one of the most persistent limitations in spacecraft engineering: the diameter of a rocket’s protective payload fairing... (MORE - details)
https://youtu.be/8_SXK7epyZc