This galaxy before seemed to be very similar to our Milky Way galaxy, a spiral galaxy seen almost by singing. However, recent high-resolution images of the NGC 891 powder show unusual filamentary patterns extending away from its galactic disk.
This interstellar dust was possibly ejected from the galactic disk into the halo by stellar explosions of supernovae. Since the dust is so fragile, its appearance after surviving the expulsion of the disc can be very blunt.
Again, the phenomena discovered, however, sometimes seem so complex that more questions arise than are answered.
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