science

Astrophysics & Cosmology

From neutron stars to dark energy — explore the most extreme phenomena in the universe through interactive simulations and real physics.

astrophysicscosmologyneutron starsgravitational wavesdark energysupernovainflation

Astrophysics studies the most extreme environments in the universe: neutron stars with densities beyond imagination, gravitational waves rippling through spacetime, and a mysterious dark energy pushing galaxies apart at an accelerating rate. These phenomena stretch the laws of physics to their limits.

These simulations let you manipulate the parameters of cosmic objects and observe how the universe behaves under extreme conditions. Compress a star into a neutron star, trigger a supernova, detect gravitational waves from merging black holes, and watch the universe inflate from a quantum seed.

5 interactive simulations

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Cosmic Inflation & Early Universe

Simulate the first fraction of a second after the Big Bang — watch the universe inflate exponentially and seed the structure of everything

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Dark Energy & Accelerating Expansion

Simulate the accelerating expansion of the universe — explore how dark energy density, matter content, and the cosmological constant shape cosmic fate

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Gravitational Wave Detection & Mergers

Simulate gravitational waves from merging compact objects — visualize spacetime ripples and the chirp signal detected by LIGO

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Neutron Star Density & Structure

Explore the extreme physics of neutron stars — compress solar masses into city-sized spheres and observe how density, gravity, and rotation behave

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Supernova Explosion Lifecycle

Watch a massive star collapse and explode as a supernova — simulate the shockwave, nucleosynthesis, and remnant formation in real time