Space Systems

37 products, each exploded into a recursive bill of materials. Open one and keep clicking down to the bolts.

Cargo Resupply Spacecraft An uncrewed logistics vehicle that carries pressurized cargo to an orbital station, combining a cargo module with a service module providing propulsion, power, and guidance. 574 parts · 7 subsystems

Communications Satellite A geostationary communications satellite carrying a multi-band transponder payload on a three-axis-stabilized bus. 725 parts · 9 subsystems

Crew Capsule A reusable crewed spacecraft that carries astronauts to orbit and returns them through atmospheric entry under an ablative heat shield and parachutes. 257 parts · 9 subsystems

CubeSat Power Module Compact power distribution and energy storage system for small satellites using rechargeable battery cells and integrated charge/discharge controllers. 36 parts · 8 subsystems

Deployable Solar Array Wing Expandable photovoltaic power generation system that folds against a spacecraft body during launch and deploys in orbit. 37 parts · 8 subsystems

EVA Space Suit A one-person anthropomorphic spacecraft combining a 29.6 kPa pure-oxygen pressure garment with a backpack life support system that sustains an astronaut for 8-hour spacewalks. 181 parts · 8 subsystems

GPS Navigation Satellite A medium-Earth-orbit spacecraft that broadcasts precisely timed L-band ranging signals derived from onboard atomic clocks, allowing receivers on the ground to trilaterate position to metre level. 2,640 parts · 9 subsystems

Hall Effect Thruster Electric plasma thruster that ionizes propellant gas and accelerates ions in a crossed electric and magnetic field, producing high specific impulse. 32 parts · 8 subsystems

Ion Thruster A gridded electrostatic thruster that ionizes xenon in a discharge chamber and accelerates the ions through charged grids to ~30 km/s exhaust velocity, trading tiny thrust for ten times the fuel economy of chemical rockets. 880 parts · 8 subsystems

Launch Escape System Rapid-deployment abort system that propels a crew capsule away from a failing launch vehicle using solid-rocket motors. 37 parts · 8 subsystems

Liquid Rocket Engine A turbopump-fed liquid-propellant rocket engine that burns LOX and kerosene in a regeneratively cooled thrust chamber to produce roughly 850 kN of sea-level thrust. 392 parts · 8 subsystems

Lunar Lander An uncrewed spacecraft that brakes itself from lunar orbit with a throttleable descent engine, navigates to a chosen site by camera and laser, and sets a payload deck down on four shock-absorbing legs. 1,803 parts · 9 subsystems

Mars Science Rover A nuclear-powered six-wheeled robotic laboratory that drives across Mars, drills rock, and analyzes samples. 1,624 parts · 10 subsystems

Orbital Launch Vehicle A two-stage kerosene/liquid-oxygen rocket of roughly three million parts — the Saturn V was documented at about 3 million — that accelerates a payload to ~7.8 km/s using nine first-stage engines and one vacuum-optimised second-stage engine. 3,048,823 parts · 6 subsystems

Reaction Wheel Assembly Momentum storage device that spins a flywheel to control spacecraft attitude through conservation of angular momentum. 39 parts · 8 subsystems

Rocket Transporter-Erector A mobile launch support structure that transports a multi-stage rocket horizontally, then mechanically elevates it to vertical launch orientation. 167 parts · 7 subsystems

Rocket Upper Stage The final propulsive stage of a launch vehicle: a cryogenic LOX/LH2 tank set and a restartable vacuum-optimized engine that take the payload from staging velocity to its target orbit and then deorbit themselves. 1,459 parts · 8 subsystems

Sample Return Capsule A reentry vehicle that protects returned geological or atmospheric samples during hypersonic entry, descent, and landing. 53 parts · 7 subsystems

Satellite Antenna Reflector Deployable parabolic or mesh dish that focuses or transmits RF energy, with precision shape maintained by deployment mechanism and feed assembly. 33 parts · 8 subsystems

Satellite Battery Module Large-capacity energy storage system for spacecraft using stacked lithium-ion or nickel-hydrogen cell packs with integrated BMS and thermal control. 33 parts · 8 subsystems

Satellite Dispenser A load-bearing adapter structure mounted on the launch vehicle upper stage that carries multiple satellites through ascent and releases each on command with a controlled separation velocity. 188 parts · 7 subsystems

Satellite Ground Station Antenna A steerable parabolic dish, typically 3-13 m in diameter, that tracks satellites across the sky on azimuth and elevation axes while a cooled low-noise front end recovers downlink signals tens of decibels below the noise floor of ordinary receivers. 274 parts · 7 subsystems

Satellite Laser Communication Terminal A free-space optical communications terminal using coherent laser modulation to achieve Gbps data rates between satellites without RF spectrum licensing. 197 parts · 7 subsystems

Satellite Propellant Tank A pressurized titanium vessel storing hypergolic or cryogenic propellant, with integrated fluid management devices for zero-gravity propellant settling. 54 parts · 7 subsystems

Solar Sail Spacecraft A spacecraft propelled by solar radiation pressure on a large, ultrathin reflective membrane without onboard propellant. 170 parts · 7 subsystems

Solar Simulator A ground test facility using xenon or LED arrays and collimating optics to illuminate spacecraft thermal and solar models with reproducible solar radiation matching AM0 spectrum. 97 parts · 7 subsystems

Space Plant Growth Chamber A sealed plant cultivation module using LED lighting and hydroponic root systems to grow leafy greens and medicinal plants in microgravity. 82 parts · 7 subsystems

Space Station Module A pressurized orbital habitat element with a welded aluminum shell, docking ports, ECLSS racks, and external power and thermal interfaces. 700 parts · 8 subsystems

Space Station Treadmill A microgravity treadmill that uses dynamic stabilization and impact absorption to allow astronauts to perform aerobic exercise without restraint or anchoring. 151 parts · 7 subsystems

Space Telescope An orbiting observatory that collects light with a large segmented primary mirror, feeds it to cooled science instruments behind a deployable sunshield, and returns the data to Earth over a high-gain Ka-band link. 1,843 parts · 8 subsystems

Spacecraft Cryocooler A pulse-tube or Stirling cryogenic refrigerator cooling infrared sensors to 80 K without moving parts or cryogenic fluids. 66 parts · 7 subsystems

Spacecraft Docking Adapter Mechanical and electrical interface that enables controlled capture, alignment, and mating between two spacecraft. 41 parts · 8 subsystems

Spacecraft Parachute System Multi-stage descent system using small drogue parachutes and large main canopies to slow a re-entering spacecraft to safe landing velocity. 33 parts · 8 subsystems

Spacecraft Radiator Panel Thermal dissipation device that radiates waste heat from spacecraft electronics to the vacuum of space. 32 parts · 8 subsystems

Star Tracker An autonomous optical attitude sensor that images star fields, matches them against an onboard catalog, and outputs spacecraft attitude quaternions accurate to a few arcseconds. 48 parts · 7 subsystems

Thermal Vacuum Chamber A large sealed chamber creating simultaneous thermal cycling (to ±100 °C) and high vacuum (10⁻⁷ Torr), enabling spacecraft thermal-vacuum qualification testing. 89 parts · 8 subsystems

Weather Satellite A geostationary meteorological spacecraft whose imaging radiometer scans the full Earth disc in 16 spectral bands every 10 minutes, feeding forecasts, storm warnings, and climate records through a continuous downlink. 1,765 parts · 9 subsystems