🔭 Kosmos i Astronomia

Neutron Star Merger & KilonovaNewWatch two neutron stars spiral together under gravitational-wave loss, merge, and blast out… Magnetar Starquake & FlareNewWatch an ultra-magnetized neutron star's field lines crack, reconnect, and erupt in a giant… Brown Dwarf Classifier & CoolingNewAdjust mass to classify a brown dwarf, star, or giant planet, and watch its cooling curve… Protoplanetary Disk & Planet FormationNewWatch dust accrete into planetesimals and clear gaps in a rotating protoplanetary disk… Roche Limit Tidal DisruptionNewWatch a moon stretch and shatter into a debris ring as it crosses the Roche limit around a… Gravitational Slingshot — Gravity AssistNewWatch a spacecraft's speed and path change during a gravity assist flyby of a moving planet,… Habitable Zone CalculatorNewAdjust star mass and planet orbital distance to see the circumstellar habitable zone shift,… Exoplanet Classification ExplorerNewAdjust mass, radius and orbital distance to plot a hypothetical exoplanet and see it… Cosmic Inflation SimulatorNewWatch a grid of space expand exponentially fast during the inflationary epoch, then settle… Redshift & Doppler Shift VisualizerNewWatch a moving light source stretch or compress its wavefronts and see the resulting… Cosmic Distance Ladder SimulatorNewExplore stellar parallax, standard candles and Hubble's Law — the three rungs of the cosmic… Wormhole Spacetime VisualizerNewBend spacetime and watch a light ray cross a conceptual wormhole throat in this interactive… Hall Effect Thruster — Ion PropulsionNewSimulate ion acceleration in a Hall effect thruster. Electrons spiral in E×B drift, ionizing… Cosmic Ray Air Shower — Particle CascadeNewWatch a cosmic ray proton cascade into thousands of secondary particles (pions, muons,… Stellar Interior StructureNewSolve the stellar structure equations (mass, pressure, luminosity, temperature gradients)… White Dwarf Cooling — Mestel TheoryNewMestel cooling: L ~ T^(7/2) for a crystallizing white dwarf. See the cooling track L(t) ∝… Exoplanet Transit Light CurveNewAn exoplanet crosses its host star blocking Δ(F/F_star) = (R_p/R_star)² of starlight. Adjust… Meteor Entry & AblationNewA meteoroid enters the atmosphere: drag, ablation, and luminous efficiency govern the light… Relativistic Radio JetNewAn AGN launches a relativistic jet. Relativistic Doppler boosting: S_obs = S_em · δ^(3+α)… Restricted Three-Body Problem — Roche LobesNewA test particle moves under two massive primaries orbiting their barycentre. Explore… Lagrange Points — Stability & Halo OrbitsNewPlace test masses at L1-L5 equilibrium points of the Earth-Sun system: L4 and L5 are stable… Magnetic Reconnection — Solar Flares & SubstormsNewOppositely directed magnetic field lines break and reconnect at an X-point, explosively… Dynamo Effect — How Planets Make Magnetic FieldsNewA self-sustaining dynamo: convecting electrically conducting fluid in a rotating planetary… PulsarNewSpin up a neutron star and tilt its magnetic field: drag the period and B-field sliders and… Black Hole ThermodynamicsNewSet a black hole's mass and spin (Kerr parameter a/M) and watch its Hawking temperature and… Gravitational Waves — Binary Inspiral & LIGO DetectionNewSimulate a binary black hole inspiral: watch the chirp waveform grow in frequency and… Tidal LockingNewSee how tidal forces synchronise a moon rotation to its orbital period — spin down to the… Planetary FormationNewSimulate accretion disk dynamics and planetesimal collisions — watch dust grains clump into… Warp Speed StarfieldNewWarp-speed starfield — thousands of stars streak radially outward as you jump to light speed. Solar Flare & CME: Magnetic ReconnectionNewThis simulation visualizes the process of magnetic reconnection on the Sun, where energy is… Radio Telescope Array SimulationNewExplore the principles of interferometry by adjusting baseline lengths, dish numbers, and… Ocean TidesNewThe Moon and Sun raise tidal bulges on Earth; their alignment drives spring and neap tides.… Orbital ResonanceNewWhen orbital periods lock to integer ratios, gravity tugs sum coherently. Watch 3:2, 2:1,… Van Allen BeltsNewEarth's dipole traps charged particles on bouncing helical paths. Watch protons and… Keplerian Particle Planetary Rings FormationNewObserve thousands of Keplerian particles self-organize into a planetary ring system,… SupernovaNewChoose a progenitor mass and watch a massive star collapse, rebound and blow off its… Tidal ForcesNewMove a moon inside the Roche limit and watch the difference in gravity across it stretch,… Walker Constellation DesignNewBuild your own satellite constellation by adjusting the number of planes, satellites per… Gravitational Lensing: Einstein RingsObserve how massive objects warp spacetime and bend light around them into spectacular arcs,… Aurora Borealis — Charged Particles in Earth's MagnetosphereFire solar wind particles at Earth's magnetosphere and follow the Lorentz force spiralling… Solar Wind & Earth's Magnetosphere — Bow Shock, Magnetopause, AuroraParticle simulation of the solar wind interacting with Earth's magnetic dipole. Bow shock,… Kármán Line — Where Does Space Begin?Interactive simulation of the Kármán Line at 100 km altitude. Explore atmospheric density,… N-Body Gravitational Simulation — Orbits, Collisions & SlingshotsInteractive N-body gravitational simulation with RK4 numerical integration. Add custom… Orbital Mechanics — Gravity Assist & Lagrange PointsSimulate gravitational slingshot manoeuvres and explore the 5 Lagrange points of a two-body… Space Telescope — L2 Lagrange Point & Halo OrbitInteractive simulation of a space telescope at the Sun-Earth L2 Lagrange point. Visualize… Stellar Evolution — From Nebula to SupernovaExplore the full life cycle of stars — from molecular cloud to main sequence, red giant, and… Stunning Meteor Shower Visual DisplayWitness a breathtaking meteor shower with customizable intensity, speed, radiant point, and… Solar System for KidsA fun, colourful solar system for young explorers — planet names, sizes and distances… Binary StarsTwo stars orbiting their common centre of mass with Velocity Verlet integration. Visualises… Kepler Planets8 planets with real orbital radii and periods. Asteroid belt, rings, click to focus on a planet. Dynamic Solar System SimulationExplore our solar system in 3D! Adjust planetary size, orbital speed, and observe realistic… Lagrange PointsVisualise the five Lagrange points of a two-body system (Sun–Earth, Sun–Jupiter, Earth–Moon,… Orbital MechanicsN-body Velocity Verlet integrator. Three scenarios: inner Solar System, Lagrange Points with… Star EvolutionAnimated stellar lifecycle from molecular cloud to white dwarf / neutron star / black hole,…