Lunar Safety Zone De-confliction

Place a Safety Zone

Click anywhere on the Moon to notify a new operation there — its safety zone radius is set by the type above (Artemis Accords Section 11 scales the zone to the size and nature of the operation).

Zone radius multiplier 1.0×

Auto de-conflict (nudge overlaps apart)

Mission Status

Sites notified

Active conflicts

Σ zone coverage (spherical-cap area, overlaps double-count)

0.0%

Crewed base — 300 km base radius Mining operation — 150 km base radius Science outpost — 75 km base radius Zone in conflict (overlapping)

How it works

The Artemis Accords (Section 11) ask operators to notify others of lunar activities and to keep a reasonable "safety zone" around them to avoid harmful interference — without claiming the territory itself. This sim models each zone as a spherical cap of angular radius α on the lunar surface (radius R = 1,737.4 km):

angular radius:  α = d / R              (d = notified zone radius in km)
cap area:        A = 2πR²(1 − cos α)
great-circle
angular distance: γ = arccos(n̂ᵢ · n̂ⱼ)   (n̂ = unit vector to site)
conflict test:   γ  <  αᵢ + αⱼ

Click the Moon — raycasts your click onto the sphere and notifies a new operation at that point with the selected type's radius × the multiplier.
Auto de-conflict — every conflicting pair pushes both sites apart along the tangent plane, proportional to the overlap depth γ − (αᵢ+αⱼ), until the zones stop overlapping — a simple gradient-descent solver on the great-circle constraint.
Coverage sums each cap's own share of the Moon's total surface area (4πR²); it double-counts overlapping zones on purpose, so it is a "notified footprint" figure, not a true union.

Real-world relevance: with dozens of Artemis-era landing sites clustering near the lunar south pole's permanently shadowed craters, this exact overlap problem is why safety-zone coordination between space agencies is an active diplomatic and operational question.

Maximum 24 sites reached — reset to add more.

⚠ Couldn't load the 3D engineThree.js failed to load from the CDN. Check your connection and reload.

Lunar Safety Zone De-confliction Simulator