Since its formulation by Sir Isaac Newton, the problem of solving the equations of motion for
three bodies under their own gravitational force has remained practically unsolved …

The three-body problem is arguably the oldest open question in astrophysics and has
resisted a general analytic solution for centuries. Various implementations of perturbation …

We study the chaotic-like behavior of cosmological simulations by quantifying how minute
perturbations grow over time and manifest as macroscopic differences in galaxy properties …

Close encounters between two bodies in a disc often result in a single orbital deflection.
However, within their Jacobi volumes, where the gravitational forces between the two bodies …

We investigate the chaotic behaviour of the S-star cluster in the Galactic Centre using
precise N-body calculations, free from round-off or discretization errors. Our findings reveal …

Context. The three-body problem (3BP) poses a longstanding challenge in physics and
celestial mechanics. Despite the impossibility of obtaining general analytical solutions …

We present an approach to cosmology in which the Universe learns its own physical laws. It
does so by exploring a landscape of possible laws, which we express as a certain class of …

Chaos is present in most stellar dynamical systems and manifests itself through the
exponential growth of small perturbations. Exponential divergence drives time irreversibility …

In self-gravitating N-body systems, small perturbations introduced at the start, or infinitesimal
errors that are produced by the numerical integrator or are due to limited precision in the …

We construct a model for the Milky Way (MW) Galaxy composed of a stellar disc and bulge
embedded in a dark-matter halo. All components are modelled as N-body systems with up to …