Builds space solar arrays that launch small and expand to football-field scale in orbit.
Using physics-informed digital twins for deployment simulation, predictive anomaly detection for in-orbit maintenance, and generative topology optimization.

Technology
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Aerospace & Defense
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YC W26

Last Updated:
March 19, 2026

Develops deployable space solar arrays and radiators that launch compact (dining table size) and expand to football-field scale in orbit. Targets the 500x increase in space power demand expected by 2030, driven by orbital datacenters, space stations, and lunar outposts.
Core technology developed with NASA and Carnegie Mellon research funding. Patents filed. Technology improves stowage efficiency and structural performance for 100kW+ systems. Near-term goal: make deployables boring, trustworthy, and scalable. Long-term: enable kilometer-scale space infrastructure including artificial-gravity stations.
Founded in 2023 with NASA research backing, indicating longer deep-tech development cycle. The 500x space power demand increase by 2030 creates massive market tailwind. YC W26 signals go-to-market acceleration and fundraising for hardware development and testing.
<p>AI-powered digital twins simulate the full deployment sequence of football-field-scale solar arrays in orbit, enabling real-time optimization of unfolding mechanics before and during mission execution.</p>
A virtual copy of the solar array unfolds itself thousands of times in a computer before the real one ever tries it in space.
Beyond Reach Labs' core engineering challenge is reliably deploying a compact, stowed structure into a football-field-scale solar array in the zero-gravity, thermal-cycling environment of orbit—where a single mechanical failure means total mission loss. To address this, they almost certainly employ physics-informed neural networks (PINNs) and high-fidelity finite element models fused into a real-time digital twin framework. These digital twins ingest sensor telemetry (strain gauges, accelerometers, thermal sensors) during deployment and continuously compare actual structural behavior against predicted states, enabling autonomous mid-deployment corrections. During ground development, the digital twin accelerates design iteration by replacing costly physical deployment tests with thousands of simulated deployment sequences under varied thermal, gravitational, and perturbation conditions. Reinforcement learning agents can explore deployment sequencing strategies—determining optimal hinge activation order, deployment speed profiles, and damping parameters—that minimize structural stress concentrations and maximize positional accuracy. This approach is particularly critical given that their arrays must maintain precision pointing for power generation after deployment. The founder's Carnegie Mellon research background in simulation and deployable structures strongly suggests this capability is foundational to their engineering workflow rather than aspirational.
It's like rehearsing a giant origami unfold a million times in a video game so the one time you do it for real in zero gravity, every crease lands perfectly.
<p>ML-driven anomaly detection continuously monitors deployed solar array structural integrity in orbit, predicting degradation and triggering autonomous protective responses before failures occur.</p>
Smart sensors on the solar array act like a nervous system that feels damage coming before it happens and automatically protects itself.
Once a football-field-scale solar array is deployed in orbit, it faces continuous micro-meteoroid impacts, thermal cycling stress (swinging between extreme heat and cold every 90-minute orbit), and gradual material degradation from atomic oxygen and UV radiation—all without any possibility of human repair. Beyond Reach Labs almost certainly develops onboard ML models trained on vibration signatures, thermal profiles, and electrical output patterns to detect subtle anomalies that precede structural failures. Unsupervised learning techniques such as autoencoders and isolation forests establish baseline behavioral profiles during initial healthy operation, then flag deviations in real time. Supervised models trained on simulated failure modes (hinge fatigue, membrane tears, electrical bus degradation) classify detected anomalies and estimate remaining useful life. When the system detects a developing issue—say, a micro-meteoroid impact causing localized membrane damage—it can autonomously adjust array pointing to reduce stress on the affected region, redistribute electrical loads, or trigger safe-mode configurations. This capability is essential for commercial viability: customers paying for multi-year power delivery need confidence that the array will self-manage its health without ground operator intervention for every anomaly. Edge-deployed inference models running on radiation-hardened processors enable sub-second response times critical for protecting the structure during dynamic events.
It's like giving a bridge the ability to feel its own cracks forming and automatically reroute traffic away from the weak spots before anything breaks.
<p>Generative AI and topology optimization algorithms explore millions of deployable structure configurations to discover novel array geometries that maximize power density while minimizing mass and stowed volume.</p>
An AI architect designs millions of possible solar array shapes overnight and picks the ones that fold smallest, weigh least, and generate the most power.
The fundamental engineering constraint for space solar arrays is the tension between stowed volume (must fit inside a rocket fairing), deployed area (determines power output), structural mass (drives launch cost), and mechanical reliability (every fold, hinge, and joint is a potential failure point). Traditional design approaches rely on human engineers iterating through a limited number of known deployable geometries—accordion folds, fan-folds, rolled booms. Beyond Reach Labs, given their patented novel architecture and the founder's deep simulation expertise, almost certainly employs generative design and topology optimization powered by ML to explore vast design spaces that human intuition alone cannot navigate. Using techniques like generative adversarial networks (GANs) conditioned on structural performance metrics, evolutionary algorithms, and differentiable physics simulators, they can evaluate millions of candidate geometries against multi-objective fitness functions: maximize deployed area, minimize stowed volume, minimize mass, maximize structural stiffness, and minimize joint count. The ML system learns which topological features correlate with superior performance across these competing objectives and proposes novel configurations that may look unintuitive but outperform conventional designs. This is particularly powerful for their thermal radiator product line, where the design constraints differ significantly from solar arrays but the underlying deployable structure optimization framework transfers directly. Each generation of designs feeds back into the training data, creating a compounding advantage where their design AI becomes increasingly effective with each product iteration.
It's like asking a million architects to each design a different folding umbrella overnight, then picking the one that folds into a thimble but opens to cover a parking lot.
Mitch invented the core technology during his PhD working with NASA on kilometer-scale deployable structures. Pele spent 7 years at SpaceX designing, qualifying, and flying mission-critical hardware on 30+ Dragon missions. They have been building together since 2013 as UPenn freshmen, providing 13 years of co-founder alignment. This combination of space hardware flight experience and advanced structural research is extremely rare.