What is going on in NGC 891 [ http://antwrp.gsfc.nasa.gov/apod/ap970228.html ]? This galaxy appeared previously to be very similar to our own Milky Way Galaxy [ http://antwrp.gsfc.nasa.gov/apod/ap971229.html ]: a spiral galaxy [ ftp://crux.astr.ua.edu/web/goodies/data_resources/galaxies.text ] seen nearly edge-on [ http://www.limber.org/eon0.html ]. However, recent high-resolution images of NGC 891 [ http://www.seds.org/messier/xtra/ngc/n0891.html ]'s dust show unusual filamentary patterns extending well away from its Galactic disk. This interstellar dust [ http://antwrp.gsfc.nasa.gov/apod/ap980104.html ] was probably thrown out of the galactic disk toward the halo [ http://www.bc.kern.cc.ca.us/programs/sea/Astronomy/milkyway.description/milkyway.description.html ] by stellar supernovae explosions [ http://antwrp.gsfc.nasa.gov/apod/ap980217.html ]. Because dust is so fragile, its appearance after surviving disk expulsion can be very telling [ http://www.astro.wisc.edu/~howk/Papers/N891/n891.html ]. Newly discovered phenomena, however, sometimes appear so complex [ http://antwrp.gsfc.nasa.gov/apod/ap980310.html ] that more questions are raised than are answered.