Optical image of the galaxy NGC 891 showing dark extinction features extending out from the midplane
Galactic Chimneys: An Unseen Component of the Disk-Halo Interaction
Date

Optical image of the edge-on galaxy, NGC 891, showing dark, thread-like extinction features — walls of the chimneys — extending above and below the midplane. SOFIA [C II] observations reveal a significant mass of gas in the chimney walls.

Credit
Adam Block/Mount Lemmon SkyCenter/University of Arizona
Image Number
SCI2021_010