Self-Assembling Magnetic Tiles to Build Large Space Infrastructure

Self-assembling magnetic tiles known as TESSERAE are currently undergoing preparations for a new round of testing aboard the International Space Station, cnn.com reported, as researchers look for scalable ways to construct large-scale space infrastructure without relying on traditional multi-mission assembly methods.

The Tech TL;DR:

• TESSERAE tiles use electro-permanent magnets, cameras, and AI to autonomously latch into predetermined shapes in microgravity.
• Rendezvous Robotics, a spin-off from the Aurelia Institute, recently secured $20 million in funding on October 28 to commercialize the architecture.
• Developers plan to test one-to-three-foot tiles outside the ISS in 2028, targeting large telecommunications antennas, solar arrays, and future orbital data centers.

Testing Reconfigurable Space Architecture Aboard the ISS

Invented initially by Ariel Ekblaw during her PhD studies at the Massachusetts Institute of Technology, TESSERAE stands for Tessellated Electromagnetic Space Structures for the Exploration of Reconfigurable, Adaptive Environments. The system relies on stackable tiles that pack inside a rocket and deploy autonomously in orbit. Once released, the tiles use electro-permanent magnets, integrated cameras, and AI to find each other and lock into position, forming pressurized volumes capable of supporting human habitation.

Space architecture has historically demanded complex, multi-year assembly efforts. Constructing the International Space Station starting in the late 1990s required dozens of individual rocket launches, followed by intricate robotic manipulation and spacewalking astronauts. Alternative deployment strategies have since emerged to reduce launch volume and EVA hours. Bigelow Aerospace launched an inflatable structure to the station in 2016, which expanded using 25 short bursts of air across seven hours per NASA documentation. Sierra Space and Max Space have similarly pursued expandable habitats.

TESSERAE takes a different mechanical approach by prioritizing modularity and reconfigurability over inflation. Earlier iterations measuring a few inches across underwent small-scale tests on the ISS in 2020 and 2022. The upcoming test phase scheduled for December or January will place edge-camera-equipped tiles inside the orbiting laboratory to form a ball-shaped structure roughly the size of a giant beach ball.

Commercializing Orbital Construction Through Recent Funding

To transition the technology from laboratory research to commercial deployment, the Aurelia Institute spun off Rendezvous Robotics. The newly formed commercial entity announced $20 million in funding on October 28. Rendezvous Robotics is currently developing larger tiles ranging from one to three feet wide, utilizing electromagnets to manage the connection sequence.

The company has scheduled its first external demonstration for 2028, which will place several tiles outside the ISS to test self-assembly in the harsh environment of space. Sandra Häuplik-Meusburger, an architect and space researcher at the Vienna University of Technology, noted to cnn.com that adaptable systems offer long-term utility because structures can be physically taken apart and repurposed decades later.

Initial commercial applications will likely bypass human habitation entirely in favor of industrial infrastructure. According to Ariel Ekblaw, speaking to cnn.com, the earliest realistic use cases involve large telecommunications antennas and expansive solar arrays designed to capture continuous sunlight. Subsequent deployment targets include orbital AI data centers and off-planet manufacturing facilities, tapping into a growing commercial rush for commercial space real estate.