Radio observation in hydrogen line (1420MHz)

Fly-through of 3D plot of Milky Way Spiral Arms created using data from LRO 1, 2 and 3 radio telescopes from start of data collection to 17 August 2025 (extended 3D slices revised version 4 September 2025)

Compare the 3D results below with 2D map using same data:

Latest LRO 2D Map of Milky Way Arms 2 September 2025 – astronomy.network The Website of Lichfield Radio Observatory (LRO)

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