Phoenix reusable crewed spacecraft above the lunar surface with Earth in the distance
Vehicle Program | PX-1

Phoenix

A reusable crewed spacecraft for return transit between Earth orbit and the lunar surface. Thermal-armored, restartable, and sized to come back again.

Reference Specification

Class
Crewed cislunar transport
Crew capacity
4 to 6 (concept)
Crew + cargo to LLO
8 t (concept)
Propulsion
LOX / LH2, restartable
Thermal protection
Reusable tiled heat shield
Return mode
Direct Earth entry or orbital docking
Autonomy
Crew-supervised, autonomous fallback
Status
Concept development
Design life
50+ return flights (target)

Figures are concept-level targets from an ongoing study, not flight hardware performance.

What makes the vehicle different

Built to return

Phoenix is designed around the return leg: thermal tiles, distributed heat rejection, and an entry profile that can bring crew and samples back to Earth more than once. Rebirth is not a metaphor; it is the flight envelope.

Crewed, not crew-dependent

Operators can override at any point, but ascent, rendezvous, descent, and landing are designed to complete autonomously. That reduces crew workload and makes the same vehicle useful for uncrewed cargo runs when people are not aboard.

Surface sorties from orbit

Phoenix pairs with an orbital outpost or propellant depot. The crew descends, operates on the surface, then returns to the same orbiting habitat. The vehicle becomes a shuttle that multiplies the value of a fixed station.

Fueled by the Moon

Long term, the goal is to refuel Phoenix with oxygen and hydrogen produced on the lunar surface. A return-capable craft that can tank locally changes the mass math: every flight carries capability back to Earth instead of throwing it away.

Where it fits

Phoenix is the crewed link in the cislunar logistics loop. Extearier moves cargo and raw resources; Phoenix moves people, science payloads, and high-value samples. Together they form a round-trip economy: materials flow one way, capability and crew flow back.