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Explanation: What is going on in NGC 891? This galaxy appeared previously to be very similar to our own Milky Way Galaxy: a spiral galaxy seen nearly edge-on. However, recent high-resolution images of NGC 891's dust show unusual filamentary patterns extending well away from its Galactic disk. This interstellar dust was probably thrown out of the galactic disk toward the halo by stellar supernovae explosions. Because dust is so fragile, its appearance after surviving disk expulsion can be very telling. Newly discovered phenomena, however, sometimes appear so complex that more questions are raised than are answered.
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NASA Web Site Statements, Warnings, and Disclaimers
NASA Official: Jay Norris. Specific rights apply.
A service of: LHEA at NASA / GSFC
& Michigan Tech. U.
Based on Astronomy Picture
Of the Day
Publications with keywords: dust - spiral galaxy
Publications with words: dust - spiral galaxy
See also:
- APOD: 2026 September 18 Á Messier 33: The Triangulum Galaxy
- APOD: 2026 September 16 Á Webb's View of M64
- APOD: 2026 September 11 Á M83: The Southern Pinwheel
- APOD: 2026 August 30 Á M74: A Grand Design Spiral
- APOD: 2026 July 22 Á The Corona Australis Cloud and the Chandelier Cluster
- NGC 300: A Cosmic Gemstone with Stars and Gas Clouds
- APOD: 2026 July 9 Á The Red Glow of the Cosmic Bat Nebula