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Galactic Structure

This image shows two panels side by side. The right panel illustrates a spinning top precessing due to gravitational force. The left panel depicts the Galactic disk warp, which behaves similarly to the spinning top. The warp moves in a graceful pattern under the influence of the dark matter halo's gravitational pull. This illustration was created by HOU Kaiyuan and DONG Zhanxun from Shanghai Jiao Tong University.

Milky Way’s Dark Matter Halo Shape Revealed by Galactic Disk Warp

On the left is the starburst galaxy M82 as observed by NASA’s Hubble Space Telescope in 2006. The small box at the galaxy’s core corresponds to the area captured so far by the NIRCam (Near-Infrared Camera) instrument on NASA’s James Webb Space Telescope. The red filaments as seen by Webb are the polycyclic aromatic hydrocarbon emission, which traces the shape of the galactic wind. In the Hubble image, light at .814 microns is colored red, .658 microns is red-orange, .555 microns is green, and .435 microns is blue (filters F814W, F658N, F555W, and F435W, respectively). In the Webb image, light at 3.35 microns is colored red, 2.50 microns is green, and 1.64 microns is blue (filters F335M, F250M, and F164N, respectively). NASA, ESA, CSA, STScI, A. Bolatto (University of Maryland)

NASA’s James Webb Space Telescope Uncovers Secrets of Starburst Galaxy

Largest chemical map of the Milky Way unveiled

Fermi Bubbles Explained: Fast Outward Winds and ‘Reverse Shock’ at Center of Galaxy

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