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Loading contentThe anatomy and life of our Galaxy — the structural components (thin & thick discs, bulge, bar, stellar halo, spiral arms, warp, Galactic Centre, central molecular zone, corona) and the dynamical & archaeological phenomena (rotation & dark matter, stellar streams, radial migration, galactic archaeology, magnetic field, satellite accretion, the Andromeda collision).
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| Name | Type | ID |
|---|---|---|
| Galactic Archaeology | Galactic dynamics | galactic_dynamics:galactic-archaeology |
| Galactic Rotation | Galactic dynamics | galactic_dynamics:galactic-rotation |
| Radial Migration | Galactic dynamics | galactic_dynamics:stellar-migration |
| Satellite Galaxies & Accretion | Galactic dynamics | galactic_dynamics:satellite-galaxies-and-accretion |
| Stellar Streams | Galactic dynamics | galactic_dynamics:stellar-streams |
| The Central Molecular Zone | Galactic structure | galactic_structure:central-molecular-zone |
| The Galactic Bar | Galactic structure | galactic_structure:galactic-bar |
| The Galactic Bulge | Galactic structure | galactic_structure:galactic-bulge |
| The Galactic Centre | Galactic structure | galactic_structure:galactic-center |
| The Galactic Corona | Galactic structure | galactic_structure:galactic-corona |
| The Galactic Fountain | Galactic dynamics | galactic_dynamics:galactic-fountain |
| The Galactic Habitable Zone | Galactic dynamics | galactic_dynamics:the-galactic-habitable-zone |
| The Galactic Magnetic Field | Galactic dynamics | galactic_dynamics:galactic-magnetic-field |
| The Galactic Warp | Galactic structure | galactic_structure:galactic-warp |
| The Milky Way–Andromeda Collision | Galactic dynamics | galactic_dynamics:the-milky-way-andromeda-collision |
| The Solar Neighbourhood | Galactic structure | galactic_structure:the-solar-neighbourhood |
| The Spiral Arms | Galactic structure | galactic_structure:spiral-arms |
| The Stellar Halo | Galactic structure | galactic_structure:stellar-halo |
| The Thick Disk | Galactic structure | galactic_structure:galactic-thick-disk |
| The Thin Disk | Galactic structure | galactic_structure:galactic-thin-disk |
Facts on this topic will be cited from these primary and reference sources.
Mission data, planetary science, space telescopes, and public-domain imagery.
Most NASA-produced imagery is in the public domain; individual items are checked for usage terms before publication.
Southern-hemisphere observatory data and imagery (VLT, ALMA partner).