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Galactic Dynamics

Studying the formation, structure, and motion of stars, gas, and dark matter within galaxies.

Explore by Galactic Dynamics

Artistic visualization of an active galactic nucleus showing a supermassive black hole with a bright accretion disk, twin relativistic jets, and swirling star-forming galaxies around it.

January 8, 2026

SMBH Feedback in Early Universe Galaxy Mergers

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Two bright spiral galaxies in deep space merging together, their glowing central cores and overlapping disks surrounded by scattered stars and distant galaxies.

December 26, 2025

Simulating the Milky Way–Andromeda Merger

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Artistic visualization of multiple spiral galaxies merging inside an elongated galaxy cluster, embedded within faint blue cosmic filaments stretching across deep space.

December 24, 2025

Rotating Cosmic Filament and Galaxy Spin

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Bright spiral galaxy with a glowing central bulge and sweeping stellar streams extending into deep space, surrounded by distant satellite galaxies and stars.

December 22, 2025

Andromeda Chemo-Kinematic Disk Mapping

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Two bright spiral galaxies in deep space colliding and forming a luminous bridge of stars, gas, and dust against a dark star-filled background.

December 20, 2025

Galaxy Mergers and Cosmic Evolution

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A detailed visualization of a tilted spiral galaxy in deep space, featuring a bright central core, sweeping arms composed of stars and dust, and faint outer filaments.

December 7, 2025

Andromeda Halo Mapping & Stellar Substructures

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A Chemo-Kinematic Dissection of the Andromeda Galaxy's Disk: Tracing Radial Migration and Accreted Stars

August 18, 2025

A Chemo-Kinematic Dissection of the Andromeda Galaxy's Disk: Tracing Radial Migration and Accreted Stars

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The Nuclear Star Cluster and Central Black Hole of Andromeda (M31): A Kinematic and Stellar Population Analysis

August 17, 2025

The Nuclear Star Cluster and Central Black Hole of Andromeda (M31): A Kinematic and Stellar Population Analysis

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Two spiral galaxies, one with prominent golden arms and the other with a reddish-pink hue, engage in a gravitational interaction against a backdrop of distant stars in space.

August 14, 2025

The Impact of Galactic Mergers on Star Formation Efficiency: A Comparative Simulation Study

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FAQs about Galactic Dynamics

It’s the study of how stars, gas, and dark matter move within a galaxy.

By tracking the speed and position of many stars and gas clouds inside the galaxy.

Visible matter alone isn't enough to explain why galaxies spin so fast. Dark matter provides the extra gravity needed to hold them together.

Researchers use telescopes to observe stars and supercomputers to create models of galaxies.