Research topic · market & economics
Physical AI in space.
Above the Kármán line there is no labor pool. Every task that keeps an orbital economy running — assembling an array, replacing a failed accelerator, refueling a tug, capturing a derelict, deorbiting debris — is done by a machine or it is not done at all. That makes Physical AI the space economy's labor supply rather than a substitute for it, and its maturity curve, not solar flux and not chip supply, sets the sector's speed limit.
Grant Markhart, Industrial Research Fellow · The Charlot Lab & The Hiner Lab
$626.4B
global space economy, 2025
~78% commercial; government spending majority-defense for the first time
$100–300/kg
published orbital-DC parity band
against ~$1,500–3,600/kg today: the trade is 10–30× out of the money
~10⁶ : 1
filed ambition vs flying hardware
under 0.1 MW of compute in orbit against >100 GW of stated plans
355,000+
autonomous Starlink maneuvers per year
the largest deployed Physical-AI behaviour in existence
The review
One thesis, priced.
Orbital data centers and Physical AI are usually told as two stories. They are one: solar-powered compute in orbit is a launch-cost derivative with an embodied-autonomy multiplier, because every path to it runs through robots that work where people cannot.
The review compiles ~90 primary and trade sources across English, Chinese, Japanese, French, German, Italian, Korean and Russian coverage. The non-English sweep matters: it surfaced Shanghai's 1,000-satellite Xingshu Plan, CASC's Tiangong Kaiwu resource program, Japan's Space Strategy Fund allocations and Orbital Lasers' Series A, all largely absent from US reporting.
Its sharpest section is a doctrinal net assessment built from maneuver prices rather than from any operational source. Orbital engagement is logistics-limited: Δv is ammunition, orbital position is terrain, and decision latency is tempo. One conclusion falls out of the debris physics rather than from opinion — a kinetic anti-satellite attack in a dense compute shell seeds the cascade that denies the orbit to the attacker too, which is why the competition is pushed toward reversible, non-kinetic effects.
Run the physics
Two consoles.
The review's two load-bearing claims are packaged as instruments you can drive. Both are schematic — two-body impulsive kinematics, for intuition rather than mission design — and both run entirely on your own device.
APPENDIX B
Orbital Debris Ops
A 3-D Earth carrying 62 real objects propagated from current two-line elements, plus a 22,000-point catalog-shaped debris cloud. Live physics for any altitude shell — density, flux, collision rate, the NASA breakup model, the Kessler criterion — and a source–sink cascade mode that lets you inject an ASAT breakup and watch the n² runaway.
Open the console →
APPENDIX COrbital Maneuver Ops
A mission planner that solves any LEO↔MEO↔GEO transfer from the vis-viva and rocket equations for a chosen vehicle and propellant, animates it along its true conic, and reports Δv against that vehicle's propellant wallet. A pursuit/evasion mode makes the decision-latency law tangible.
Open the console →
Appendix A · the companion database
83 sourced records.
Every company and program the review tracks, with what it is building, what has actually flown, and who is funding it. Records resting on a single or machine-translated source carry an UNVERIFIED flag; re-confirm those before citing them elsewhere.
Orbital Data Centers (22) · Logistics & Servicing (39) · Robotics & Physical AI (22) · 5 flagged UNVERIFIED
Orbital Data Centers
| Company / program | HQ | What they are building | Status (Aug 2026) | Flight heritage |
|---|---|---|---|---|
| Starcloud | Redmond, WA, US | Solar-powered GPU satellites scaling toward 5 GW orbital clusters (~4×4 km arrays) | Flight-proven demo | Starcloud-1 (Nov 2025): first NVIDIA H100 in orbit; first LLM trained in space (nanoGPT); radiator undersized for full power |
| SpaceX — AI1 / orbital compute | Starbase, TX, US | AI1 compute satellite from Starlink V3 bus: 150 kW solar, ~120 kW avg compute, liquid radiators, 1 Tbps laser links; up to 1M satellites filed | Study/Filing + design revealed | None yet for compute (Starlink bus + laser network flight-proven at scale) |
| Google — Project Suncatcher | Mountain View, CA, US | 81-satellite TPU clusters (1 km radius) in 650 km dawn-dusk SSO; free-space optical links (1.6 Tbps demoed); ~8× terrestrial solar yield | Study + component tests | Trillium TPUs proton-tested to ~15 krad TID (≈2.7× margin on 5-yr mission); no orbital hardware yet |
| Blue Origin — Project Sunrise | Kent, WA, US | Up to 51,600 compute satellites (500–1,800 km SSO) + TeraWave broadband constellation as connectivity layer | Study/Filing | None for compute (New Glenn flown 2× by Nov 2025) |
| Axiom Space — Orbital Data Center | Houston, TX, US | ODC network: station-hosted + free-flying compute nodes with optical crosslinks | Operational (early nodes) | AxDCU-1 on ISS (fall 2025, Red Hat Device Edge); ODC Node-1/-2 launched Jan 11 2026 on Kepler satellites (2.5 Gbps optical) |
| Kepler Communications | Toronto, Canada | Optical data-relay constellation hosting distributed GPU compute (40× NVIDIA Jetson Orin across tranche 1) | Operational | 33 satellites launched incl. 10-sat optical Tranche 1 (Jan 11 2026); commissioned 'first space-based scalable cloud' Mar 16 2026 |
| Cowboy Space (ex-Aetherflux) | San Carlos, CA, US | 'Stampede' constellation: solar power beaming + orbital DCs; launch vehicle whose upper stage IS the data center (1 MW compute/vehicle); NVIDIA Vera Rubin 'Space-1' modules | In development | None yet |
| ADA Space (国星宇航) — Star-Compute Plan | Chengdu, China | 2,800 satellites by 2035 (2,400 inference + 400 training; 100k P inference / 1M P training targets); ITU filings for 3,145 sats | Operational (early constellation) | 33 satellites across 14 missions by Jan 2026; Alibaba Qwen3 LLM inference in orbit (Nov 2025); 'Prometheus' space-cloud platform (Mar 2026) |
| Zhejiang Lab — Three-Body Computing Constellation | Hangzhou, China | Space computing constellation: on-orbit AI processing + 100 Gbps laser inter-sat networking; 'thousand-satellite' ambition | Operational (early constellation) | First 12 sats (May 14 2025, ~5 POPS); 10 AI models verified in orbit; 6-sat in-orbit networking demo; Jul 24 2026 expansion incl. embodied-intelligence test sat |
| Shanghai 'Xingshu Plan' (星枢计划) | Shanghai, China | China's first commercially-operated space intelligent-computing network: 14 verification sats → 150 → 1,000 (800 central + 200 edge); lead sat 32 POPS with 'aerospace-grade GPU' | Announced + first sats revealed | First 3 satellites revealed at WAIC (Jul 18 2026) |
| Lonestar Data Holdings | St. Petersburg, FL, US | Resilience-as-a-service: data storage/edge processing on and around the Moon; 50 PB target | Flight-proven demo | IM-1 (2024) software demo; IM-2 'Freedom' 8TB SSD payload (Feb–Mar 2025, curtailed by lander tip-over); DTN edge processing validated Aug 2025 |
| NTT / Space Compass (NTT C89) | Tokyo, Japan | Space data centers using IOWN photonics: GEO optical data relay + on-orbit AI inference; 3-stage space-DC roadmap | In development (behind original 2025/26 plan) | On-orbit edge-AI demo agreement with Microsoft (Apr 2025); no dedicated DC satellite launched yet |
| Thales Alenia Space — ASCEND | Cannes, France / EU | EU Horizon study: 1 GW modular orbital DC assembled in orbit; climate-positive if launcher lifecycle CO2 cut 10× | Study/Concept | None (EROSS in-orbit robotic assembly demo feeds roadmap, 2026) |
| Relativity Space | Long Beach, CA, US | Terran R reusable medium-lift launcher; Eric Schmidt-stated purpose: launching data centers to orbit | In development | No Terran R flights yet |
| Sophia Space | Pasadena, CA, US | 'TILE' thermal-integrated LEO edge compute tiles aggregating into orbital racks; SOOS autonomous OS | In development | Software demos in space planned 2026 |
| Aethero | San Francisco, CA, US | NxN radiation-tolerant edge computers (NVIDIA Orin) for spacecraft autonomy; stated orbital-DC ambitions | Flight-proven (components) | Edge computers flown on SpaceX rideshares |
| Ramon.Space | Yokne'am, Israel / US | Radiation-hardened computing systems for comms/EO/'data centers in space' | Operational (components) | Space-qualified processors with multi-mission heritage |
| Madari Space | Abu Dhabi, UAE | LEO orbital data centers for in-space EO data processing + sovereign storage; cislunar ambitions | In development | None yet |
| D-Orbit — orbital cloud line | Fino Mornasco, Italy | AI-eXpress in-orbit cloud/edge computing on ION carrier fleet (€15M 3-yr R&D committed) | Operational (edge tier) | 17 ION missions flown; Nebula cloud payloads demonstrated |
| OrbitsEdgeUNVERIFIED | Titusville, FL, US | SatFrame vibration-isolated rack for COTS servers in orbit | Study/Concept (quiet) | None; HPE partnership heritage |
| LEOcloud (acquired by Voyager) | US | Space Edge virtualized micro-DC services incl. ISS deployment plans | Acquired (Apr 2025) | — |
| HPE Spaceborne Computer-2 (precursor) | Houston, TX, US (ISS) | COTS edge supercomputer operating on ISS — proof that unhardened server silicon survives with software mitigation | Operational (ISS national lab) | Multi-year ISS ops since 2021; hundreds of experiments |
Logistics & Servicing
| Company / program | HQ | What they are building | Status (Aug 2026) | Flight heritage |
|---|---|---|---|---|
| Northrop Grumman SpaceLogistics | Dulles, VA, US | MEV docked life-extension vehicles; MRV robotic servicer (DARPA/NRL arms); Mission Extension Pods; Passive Refueling Module standard | Operational | MEV-1 (2020–25; first commercial GEO undock Apr 2025), MEV-2 docked since 2021; MRV/RSGS LAUNCHED Jul 21 2026 (first US GEO robotic servicer) |
| Astroscale | Tokyo, Japan (UK/US/FR/IL subs) | ELSA magnetic-capture deorbit; ADRAS inspection/removal; LEXI GEO life extension; APS-R USSF refueler | Operational (missions + revenue) | ADRAS-J inspected derelict H-2A stage to 15 m (ops complete Mar 2026); ELSA-d heritage |
| Starfish Space | Tukwila, WA, US | Otter servicer with electrostatic capture + CEPHALOPOD autonomous RPO software | Flight demos underway | Otter Pup 2 (launched Jun 2025) — rendezvous phases done, docking with Gilmour ElaraSat pending; autonomous RPO with Impulse Mira demonstrated (2025) |
| Impulse Space | Redondo Beach, CA, US | Mira agile OTV; Helios high-energy kick stage (LEO→GEO in hours; 4t class) | Operational | 3 Mira missions flown successfully (2023–2025) |
| D-Orbit | Fino Mornasco, Italy | ION Satellite Carrier (orbital transfer/deployment); GEA GEO life-extension servicer; RISE mission | Operational | 17 ION missions since 2020; 180+ payloads delivered |
| Exotrail | Massy, France | spacevan OTV line; spaceware Hall-effect thrusters | Operational | spacevan #1 (Nov 2023); spacevan #2 'Wings of Light' (early 2026, Transporter-16) |
| Momentus | San Jose, CA, US | Vigoride water-plasma OTV; pivot to defense tech demos | Distressed but flying | Vigoride-5/-6 (2023, anomalies); Vigoride-7 launched Mar 30 2026, hitting milestones |
| Katalyst Space (acq. Atomos) | Flagstaff, AZ / Denver, CO, US | Combined Katalyst servicing hardware + Atomos Quark OTV/docking tech | In development | Atomos heritage vehicles; NASA Swift Observatory reboost mission planned (2026) |
| Portal Space Systems | Bothell, WA, US | Supernova solar-thermal propulsion bus (LEO→GEO in hours claimed); defense focus | In development | First orbital vehicle targeted 2026 |
| True Anomaly | Denver, CO, US | Jackal multirole 'space superiority' vehicle (high-thrust maneuver, modular hardpoints) + Mosaic effect-driven autonomy software (operator sets objectives; spacecraft executes real-time maneuver/response) | Operational (missions flying) | MX-3 mission completed Jun 18 2026; VICTUS HAZE tactically-responsive RPO exercise entered flight operations Jun 22 2026 (USSF) |
| Blue Origin — Blue Ring | Kent, WA, US | Multi-orbit mobility platform: 4,000+ kg payload across 13 ports; 3,000–4,000 m/s ΔV; hybrid solar-electric + chemical; onboard edge/AI compute, comms, power as 'infrastructure services'; serves LEO→GEO, cislunar, interplanetary | Flight-proven demo | Blue Ring Pathfinder flew on New Glenn NG-1 (Jan 2025); DarkSky-1 DIU mission in development [UNVERIFIED current date] |
| Orbit Fab | Lafayette, CO, US | RAFTI refueling port (USSF-endorsed standard), GRIP nozzle, fuel shuttles & depots | Operational (interfaces) | RAFTI flight-qualified; first GRIP refueling nozzle delivered |
| ClearSpace | Renens, Switzerland | Four-armed robotic capture vehicles; ClearSpace-1 ESA mission | In development | None yet (mission redesigned after original target was struck by debris, 2023) |
| Turion Space | Irvine, CA, US | DROID spacecraft for RPO imaging, object tracking, future deorbit/servicing | Operational (imaging) | DROID.001 (2023) + DROID.002 flying; 40,000+ images; 28 US gov contracts |
| Kall Morris Inc. (KMI) | Marquette, MI, US | REACCH tentacle + gecko-adhesive capture system; TumblEye; 'orbital tow truck' | ISS-tested | REACCH captured objects aboard ISS via Astrobee (Jan 2025; expanded tests Jul 2026) |
| Rogue Space SystemsUNVERIFIED | Laconia, NH, US | Orbot inspection/servicing vehicles | Setback/quiet | Barry-1 (2023) power issues ended mission early |
| Infinite Orbits | Toulouse, France | Orbit Guard GEO inspectors; Endurance docked life-extension vehicle | Operational (inspection) | Orbit Guard flying since 2023; Orbit Guard #3 procured |
| Sustain Space | China | Robotic-arm docking + inflatable drag-sphere deorbit devices; refueling prototype next | Flight-proven demo | Xiyuan-0 (Mar 16 2026): arm approach/dock-to-port + 2.5 m drag sphere deorbit test — first Chinese commercial servicing demo |
| CAS/SAST — Shijian-21 & -25 (state) | China | GEO mission-extension and refueling demonstration vehicles | Operational (demo) | SJ-25 docked with SJ-21 in GEO ~Jul 2025; ~5 months docked; assessed first GEO-to-GEO refueling (~142 kg hydrazine reported, unconfirmed); separated Nov 2025–Jan 2026 |
| Varda Space Industries | El Segundo, CA, US | W-series reentry capsules for in-space pharma manufacturing + hypersonic testbeds | Operational | 6 capsules flown & recovered by Aug 2026 (W-1 through W-6); first FAA Part 450 reentry license |
| Inversion Space | Torrance, CA, US | Arc reentry vehicle: cargo from orbit to anywhere on Earth <1 hr (defense focus) | In development | Ray pathfinder flew Jan 2024 (deorbit incomplete) |
| Atmos Space Cargo | Lichtenau, Germany | Phoenix inflatable-heatshield return capsules | In development | Phoenix-1 (Apr 2025): flew, returned data; capsule not recovered (trajectory change) — qualified success |
| The Exploration Company | Munich/Bordeaux, DE/FR | Nyx orbital cargo capsule family (ISS/commercial stations) | In development | Mission Possible (Jun 2025): survived reentry, telemetry lost pre-splashdown; capsule lost — partial success |
| Outpost Technologies | Santa Monica, CA, US | Ferry/Carryall return vehicles with paraglider precision landing | In development | — |
| Sierra Space — Dream Chaser | Louisville, CO, US | Dream Chaser spaceplane + Shooting Star cargo module | Pre-first-flight | Unflown; NASA demoted debut to free-flyer demo (no ISS docking), late 2026 on Vulcan |
| SpaceX — Starship orbital refueling | Starbase, TX, US | Ship-to-ship cryogenic propellant transfer for HLS & beyond | In development | Intra-vehicle transfer demoed (Flight 3, 2024); ship-to-ship demo NOT yet flown as of Aug 2026 |
| LeoLabs | Menlo Park, CA, US | Global phased-array radar network + AI analytics for LEO tracking | Operational | — |
| Slingshot Aerospace | El Segundo, CA, US | Beacon collision avoidance, Seradata, global optical telescope network | Operational | — |
| NorthStar Earth & Space | Montreal, Canada | Skylark space-based SSA satellites (built/operated by Spire) | Operational (early) | First 4 sats launched 2024 |
| Privateer | Kihei, HI, US | Wayfinder open tracking; data fusion (acquired Orbital Insight) | Operational | — |
| Orbital Lasers | Tokyo, Japan | Laser-ablation de-tumbling and deorbit assist; space LiDAR | In development | None yet |
| Digantara | Bengaluru, India | Space-based surveillance sats (SCOT) + SSA data platform; missile-tracking line | Operational (early) | SCOT launched Jan 2026 (Transporter-12) |
| OrbitAID Aerospace | Chennai, India | SIDRP standard docking & refueling port; on-orbit refueling services | In development | Ground-qualified; orbital interface demo planned 2026–27 |
| Intuitive Machines | Houston, TX, US | Nova-C/Nova-D landers; lunar comms relay (NSNS); LTV bid (not selected) | Operational (mixed results) | IM-1 landed/tipped (2024); IM-2 landed at south pole but tipped, ~13 hrs ops (Mar 2025) |
| Firefly Aerospace | Cedar Park, TX, US | Blue Ghost landers; Elytra orbital vehicles; Ocula lunar imaging service | Operational | Blue Ghost M1: FIRST fully successful commercial lunar landing (Mar 2 2025, 14-day ops, 10 NASA payloads) |
| ispace | Tokyo, Japan | HAKUTO-R/APEX/ULTRA lander lines; micro-rovers | Setback/rebuilding | M1 crash (2023); M2 Resilience crash (Jun 2025, rangefinder); no successful landing yet |
| Astrobotic | Pittsburgh, PA, US | Griffin/Peregrine landers; CubeRover; LunaGrid lunar power service | Pre-next-flight | Peregrine failed (Jan 2024, propulsion); Griffin-1 NET mid/late 2026 with Astrolab FLIP rover |
| Argo Space Corp | Los Angeles, CA, US | Argonaut water-plasma transfer vehicle; lunar water-harvesting ambitions | In development | — |
| Crescent Space (Lockheed Martin) | Denver, CO, US | Parsec lunar relay constellation | In development | No nodes launched as of Aug 2026 |
Robotics & Physical AI
| Company / program | HQ | What they are building | Status (Aug 2026) | Flight heritage |
|---|---|---|---|---|
| GITAI | Torrance, CA, US (ex-Japan) | Inchworm robotic arms, lunar rover R1, S3 servicing satellite with 2 arms | Flight-proven (ISS) | S1 arm inside ISS (2021); S2 dual arms operated OUTSIDE ISS successfully (Mar 2024); 16U in-house sat demo (Jan 2025) |
| MDA Space | Brampton, Canada | Canadarm3 for Gateway; Skymaker commercial arm line; Canadarm2+Dextre ops | Operational (deepest heritage) | Canadarm2 (2001–), Dextre (2008–) operating on ISS daily |
| Motiv Space Systems | Pasadena, CA, US | xLink modular commercial arm; COLDArm (heaterless, lunar-night capable, with JPL) | Flight-proven (Mars) | Built Perseverance's 2.1 m arm (operating on Mars since 2021) |
| Honeybee Robotics (Blue Origin) | Altadena/Longmont, CO, US | Planetary drills/samplers (LISTER, PlanetVac, TRIDENT); lunar rovers | Operational (lunar surface) | LISTER + PlanetVac operated on Moon (Blue Ghost 1, Mar 2025); TRIDENT flew on IM-2 (ops curtailed by tip-over) |
| Redwire | Jacksonville, FL, US | ROSA roll-out arrays (flown: ISS, DART, Gateway PPE); STAARK arm (ground-tested); ISS bioprinting/pharma (BFF, PIL-BOX); Mason lunar construction | Operational (ISS manufacturing) | Only company routinely manufacturing on orbit today (ISS facilities); OSAM-2 was cancelled 2023 |
| DARPA/NRL — RSGS robotic payload | Washington, DC, US | Dual 7-joint dexterous arms + tools on Northrop MRV | Launched | RSGS/MRV launched Jul 21 2026; ~1-yr electric spiral to GEO; decade of ops planned |
| Lanteris Space Systems (ex-Maxar) | Palo Alto, CA, US | Maxar space-infrastructure successor; SSL arm heritage (Phoenix, InSight); SPIDER (OSAM-1, cancelled 2024) | Operational (buses) | Arms flew on Mars landers; OSAM-1 cancelled by NASA (Mar 2024) — key US OSAM setback |
| PIAP Space | Warsaw, Poland | TITAN qualification-model servicing arm; ESA lunar manipulation studies | In development | No flight heritage; TITAN qual model completed 2025 |
| Tethers UnlimitedUNVERIFIED | Bothell, WA, US | Terminator Tape deorbit modules (flown); Refabricator ISS recycler (2019, partial success); KRAKEN arm | Operational (deorbit devices) | Multiple Terminator Tape LEO demos |
| NVIDIA — Space Computing line | Santa Clara, CA, US | IGX Thor / Jetson Orin for orbital edge AI; 'Space-1' Vera Rubin module (claimed 25× H100 inference) | Platform announced; partner hardware flying | H100 flew on Starcloud-1 (Nov 2025); Jetson units on Kepler tranche + Firefly Ocula (lunar orbit, late 2026) |
| Ubotica | Dublin, Ireland | CogniSAT edge-AI payloads + SPACE:AI platform | Operational | Φsat-1 (2020, first ESA onboard-AI sat); CogniSAT-6 (2024–) live EO intelligence; NASA JPL Dynamic Targeting autonomous retasking demoed in orbit (2025) |
| ESA Φsat-2 (program) | EU (Open Cosmos-built) | 6U cubesat running uploadable AI apps (cloud/ship detection, compression); Ubotica CogniSAT inside | Operational | Launched Aug 2024; two new AI apps uploaded in-orbit (2025) |
| Exo-Space (Sidus Space) | Pasadena, CA, US | FeatherEdge onboard AI for EO | Acquired (2023) | Flying on Sidus LizzieSat line (LS-1 Mar 2024) |
| Little Place LabsUNVERIFIED | Houston, TX, US | Orbitfy: near-real-time onboard analytics (maritime, wildfire) | Operational (software on partner sats) | Running on partner satellites incl. Sidus |
| Wallaroo Labs | New York, NY, US | ML inference server optimized for constrained edge/orbital hardware | Operational (software) | USSF SBIR modeling edge-AI performance on orbital hardware |
| Apptronik (NASA partnership) | Austin, TX, US | Apollo humanoid; NASA collaboration on humanoid tech transfer | Terrestrial; space aspirational | No spaceflight; NASA Spinoff-featured 2026 |
| EngineAI + Interstellar HSF (program) | Shenzhen/Beijing, China | PM01 humanoid to fly to space (announced Jan 26 2026; no date set); CASC 'Taikobot' station-IVA concept precedes | Announced | None yet |
| Toyota / JAXA — Lunar Cruiser | Toyota City, Japan | Fuel-cell pressurized lunar rover with robotic-arm provisions (GITAI study) | In development | — |
| Airbus — ISS Metal3D & assembly | Toulouse, France | Metal 3D printer on ISS (with AddUp); on-orbit assembly roadmap | Flight-proven | First metal parts 3D-printed in orbit (2024, returned to Earth) |
| ArkisysUNVERIFIED | Los Alamitos, CA, US | Port modular assembly/servicing hub; build satellites in orbit from modules | Ground-demonstrated | Full ground demo of modular satellite build (2026); no flight yet |
| NASA JPL — CADRE (program) | Pasadena, CA, US | Trio of cooperative autonomous mini-rovers | Awaiting flight | Manifested on IM-3 (NET H2 2026–2027) |
| SpaceX — Starlink autonomous collision avoidance | Hawthorne, CA, US | Autonomous conjunction screening + maneuvering across ~11k satellites | Operational at scale | 207,152 autonomous avoidance maneuvers Dec 2025–May 2026; >355,000 in year to May 2026 (~3× 2024 rate; >40/sat/yr) |