Lunar Gravity Laboratory
Weight, jumping and motion in lunar gravity.
Interactive labs
Lunar tools and simulators
The tools are grouped by the visitor problem they solve. Related calculators remain available at their existing URLs, but they now form connected labs rather than a flat collection of independent widgets.
Gravity & Motion
Explore how lower lunar gravity changes weight, jumping and ballistic motion.
Lunar Projectile Simulator
Compare ideal projectile motion on Moon, Mars and Earth.
Mission Design
Follow a mission from Earth departure through trajectory, orbit, communications, payload design and landing.
Lunar Delta-V Mission Planner
Build a mission manoeuvre budget and test propulsion assumptions.
Earth-to-Moon Journey Simulator
Compare travel time and average path speed.
Lunar Trajectory Comparison
Compare fast, conventional, free-return and low-energy transfer concepts.
Lunar Orbit Simulator
Model idealised lunar orbit shape, period and speed.
Earth-Moon Communication Delay
Separate light-time latency from data transmission time.
Earth-Moon Link Budget Calculator
Estimate path loss, antenna gain, Eb/N0 and simplified radio-link margin.
Build a Lunar Probe
Choose science instruments under mass, power and data limits.
Lunar Landing Braking Simulator
Explore simplified powered-descent braking distance.
Earth vs Lunar Time Explorer
See why tiny relativistic clock differences matter for navigation.
Observation & Imaging
Plan when to observe, choose targets, frame the Moon and keep a record of what you saw.
Moon Phase Explorer
Estimate phase, illumination and lunar age by date.
Birthday Moon
Use the phase engine for a memorable historical date.
Moon Observation Planner
Estimate rise, transit and set times and get phase-based target suggestions.
Moon Field of View Simulator
Compare telescope and camera framing, lunar disk size and pixels across the Moon.
Moon Angular Size Explorer
See how distance changes apparent lunar diameter.
Lunar Libration Explorer
Understand which lunar limb is tipped toward Earth.
Lunar Observation Log
Keep, back up and restore a private observing notebook in your browser.
Surface & Habitat
Test the environmental and systems problems involved in operating on the lunar surface.
Lunar Thermal Environment Explorer
Explore sunlight and thermal regimes without fake precision.
Lunar Base Power Simulator
Test generation, storage, reserve and long-night demand.
Lunar Base Design Simulator
Expose system dependencies, strengths and unresolved habitat pressures.
Lunar Regolith & ISRU Explorer
Compare terrain feedstocks, resource processes and supporting systems.
Lunar Landing Site Explorer
Compare major landing sites, regions and mission significance.
Lunar Rover Traverse Planner
Estimate travel time, energy demand and reserve for surface mobility scenarios.
Surface Science
Investigate impact geology, samples, seismic activity and the Moon’s interior.
Lunar Crater Size Comparison
Put famous crater and basin diameters on a familiar scale.
Crater Morphology Explorer
Compare simple craters, complex craters and impact basins.
Lunar Sample Explorer
Match lunar sample types with laboratory questions and interpretation limits.
Moonquake Explorer
Compare lunar seismic event classes, causes, depth and surface relevance.
Lunar Interior & Gravity Explorer
Connect crust, mantle, core and mascons with seismic and gravity evidence.
Exploration History
Compare missions and see how mobility changed human field science.