Human vs robotic
Crewed rovers prioritize safety, controls, suit interfaces, tools, and rescue; robotic rovers prioritize autonomy and instrument placement.
Exploration vehicle field guide
Wheels, legs, and autonomy for other worlds.
Exploration vehicles turn landing sites into traverses. This guide compares crewed rovers, robotic lunar rovers, small scout vehicles, and commercial prototypes.
Drag to rotate. Wheel to zoom. Right-drag to pan.
Real vehicle images
Vehicle catalog
Each page includes a real image or documented model/prototype source.
Exploration vehicle
Apollo Lunar Roving Vehicle
Battery-powered crewed rover that expanded Apollo traverse range and sample return productivity.
Project-local technical rendering.
Exploration vehicle
Lunokhod 1
The first rover to operate on another world, deployed by Luna 17 and driven from Earth.
Project-local technical rendering.
Exploration vehicle
Yutu and Yutu-2
Chang'e lunar rovers used radar, imaging, and spectrometry to investigate regolith and crustal structure.
Project-local technical rendering.
Exploration vehicle
Pragyan
Chandrayaan-3's small rover performed local elemental analysis near the lunar south-polar highlands.
Project-local technical rendering.
Exploration vehicle
PTScientists rover
A real commercial rover prototype useful for studying private-sector lunar mobility design choices.
Project-local technical rendering.
Vehicle Design
Comparisons that matter
Wheels
Metal mesh, flexible wheels, grousers, compliant tires, and rocker-bogie geometry control traction and sinkage.
Thermal cycle
Lunar nights, Mars winters, dust, and eclipses define battery, heater, and survival-mode architecture.
Navigation
Dead reckoning, visual odometry, Sun sensors, inertial units, terrain maps, and operator planning work together.
Payload interfaces
Rovers are science platforms: instrument fields of view, arm reach, sample storage, and cable routing matter.
Repairability
Crewed vehicles can be serviced; robotic rovers need redundancy, graceful degradation, and fault isolation.
Mathematical model
Engineering geometry model
Engineering models are procedural, dimensionally organized teaching models. They use geometric primitives, known subsystem layout, symmetry, and transformation matrices; they are not generated from a visual image and are not exact manufacturing CAD.
Rigid transform
\[\mathbf{p}_{\mathrm{world}}=TRS\,\mathbf{p}_{\mathrm{local}}\]
Every component is positioned by translation T, rotation R, and scale S. This gives a reproducible mathematical scene graph instead of freehand drawing.
Symmetry and repetition
\[\mathbf{p}_k=R_z\!\left(\frac{2\pi k}{N}\right)\mathbf{p}_0\]
Repeated structures such as solar panels, trusses, engines, wheels, and array segments are generated by rotational or translational symmetry.
Scale verification
\[\mathrm{ratio}_{\mathrm{scene}}=\frac{\mathrm{dimension}_a}{\mathrm{dimension}_b}\]
Where the page presents relative component sizes, the scene preserves those ratios or states when readability scaling is applied.
Verification standard: the rendered object must be reproducible from stated equations, catalog parameters, or explicit geometric transforms. Visual reference images may inform presentation only; they are not the source of orbital positions, field vectors, accretion-disk gradients, timing, or engineering layout.
Limitations: browser scenes may use bounded scale, compressed distances, simplified two-body dynamics, schematic transfer curves, or educational approximations where full numerical ephemerides, CFD, finite-element models, or general-relativistic ray tracing are outside the page scope. Those simplifications are part of the model contract, not hidden image-based construction.