Announcing our $5.4M fundraise

Engineering the world's best reentry systems

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We bring heavy cargo back from space

Catalyx Space Inc. is building the best orbital return vehicles capable of delivering heavy-mass, high-power and high-volume missions from LEO to designated ocean recovery zones at lower cost.

Catalyx orbital return vehicle delivering heavy cargo from low Earth orbit

1.25 – 12 Tons, Payload Mass

World’s Widest Heat Shield, 10 – 40m Span

The largest heat shield ever flown

ReX is a series of orbital return vehicles with the thermal protection system (TPS), built on an origami-inspired hypersonic decelerator technology that recovers more payload mass, in more volume, at better economics than anything else currently flying.

Why

size matters

More volume means more possibilities—from larger payloads to lower costs and greater mission adaptability.

Largest volume

30 m³–60 m³ Volumetric Configurations Enabling the Return of Large-Format Payloads and Shipping Containers

Widest heat shield

Foldable, Deployable TPS with Highest Packing Density for Heavier Payload Return

Lowest thermal loads

Ultra-Low Ballistic Coefficient Architecture Supporting Greater Surface Area for Safe Landing

Lowest cost

Fully COTS, In-House Built Solution Offering Scalable Deployment Applications at a Fraction of the Cost

Bigger is better

ReX is a series of orbital return vehicles with the thermal protection system (TPS), built on an origami-inspired hypersonic decelerator technology that recovers more payload mass.

Rigid Body Capsule
Return Mass
2,500Kg
Capacity
10M³
Volume Scalability
Limited
Ballistic Coefficient
~350
ADEPT Mechanical Heat Shields
Return Mass
10,000Kg
Capacity
33M³
Volume Scalability
Expensive
Ballistic Coefficient
~80
Catalyx ReX Super Heavy
Return Mass
12,000Kg
Capacity
60M³
Volume Scalability
Highly Scalable
at low cost
Ballistic Coefficient
~45
Traditional Capsule Volume
ReX Volume
Heat Shield

Use Cases

Greater volume means greater capability enabling heavier payloads, more efficient missions, and lower-cost returns from orbit.

Contested Logistics

Point-to-Point Orbital and Sub-Orbital Deliveries, In-Orbit Warehouses.

Nuclear Power

Deploy and Recover Reactors in LEO for high power applications like AI Data Centers, Laser and High Energy Deterence Systems.

Asset Recovery

De-Orbit and Recover Objects of Interest, Service Critical Orbital Assets.

Hypersonic Testbed

Test New Sensors, Materials, Multi Modal Data Collection for AI powered Hypersonic Design, Testing and Evaluation.

Space Station Logistics

Cargo Resupply, In-Space Manufacturing of Advanced Materials and Return.

Interplanetary Cargo

Delivery from Factories in Lunar and Mars bases, Materials from Asteroid Mining.

Mission Manifest

Our team delivers fast, reliable, and proven mission success through experience building and launching 26+ space missions with 15+ subsystems at TRL 9, refined by extensive iterative development and contracts delivered in under 7 months.

1.ReX-3

2.ReX-ITD

3.ReX-Heavy

4.ReX-Super Heavy

5.ReX-Series

ReX-3

Launch

2026

Vehicle

TBD

Customers

ITD

ReX - ITD

Payload capacity

4Kg / 3U

Launch

2027

Vehicle

Falcon-9

Customers

Commercial

ReX–Heavy

Payload capacity

1,250Kg / 30M3

Launch

2029

Vehicle

TBD

Customers

Government & Commercial

ReX–Super Heavy

Payload capacity

12,000Kg / 60M3

Launch

TBD

Vehicle

TBD

Customers

Defence & Commercial

ReX–Series

Launch

Customer defined

Vehicle

TBD

Customers

Defence & Commercial

Our Partners

THE FOUNDER

Catalyx exists to make space accessible. We're building next-generation orbital return vehicles that reduce costs, expand access, and power the future of the space economy.

Rifath Shaarook

Co-Founder & CEO

Impossible? We build that.

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