Cosmic Dashboard
Physics Simulators
Experience extreme cosmic phenomena through interactive simulations grounded in real physics.
Black Hole
Warp spacetime, trigger mergers, watch time dilate
Spacetime CurvatureEvent HorizonTime DilationGravitational WavesTidal Disruption
Open SimulatorWormhole
Traverse an Einstein-Rosen bridge through curved spacetime
Doppler EffectGravitational LensingEvent HorizonEinstein-Rosen Bridge
Open SimulatorBig Bang
Watch the universe ignite from singularity to present day
Cosmic InflationDark AgesGalaxy FormationGravitational CollapseCosmic Time
Open SimulatorRelativity
Accelerate to near-lightspeed and watch time dilate
Special RelativityTime DilationLorentz FactorRelativistic AberrationLength Contraction
Open SimulatorMultiverse
Spawn universes, trigger mergers, traverse wormholes
Many-WorldsSpacetime DistortionUniverse MergersWormholesN-body Gravity
Open SimulatorEntropy & Arrow of Time
Release order, watch mixing, test a fragile rewind
EntropyArrow of TimeBoltzmannLoschmidt ParadoxCoarse Graining
Open SimulatorGuided Calculators
Time Dilation Calculator
Estimate how time changes at high speeds and compare moving-frame and rest-frame elapsed time.
Time dilation conceptRelativity concept
Open GuideBlack Hole Time Dilation Calculator
Explore gravitational time dilation near a black hole and compare a nearby clock with one far away.
Black hole conceptRelativity concept
Open Guide