... From a very dark site, you can see that the glow isn't smooth; it is broken up by irregular dark patches. ... in the summer for the northern hemisphere, there is actually a long dark streak through the Milky Way, called the Dark Rift ...
... It will blow off a dense wind of gas, which forms a planetary nebula , and the Sun itself is doomed to shrink again, becoming a white dwarf, then cooling forever, taking many billions of years to grow dark. ...
... they were the Sombrero Galaxy, also known as M104, and the Ring Nebula, aka M57 ... which again is much larger than the 3" they were hawking, even from a very dark site ...
... In the spirit of the holiday, below is an image of IC 2118, a nebula in Orion. ... When it's shown as it is on the left, it's called the Witch Head Nebula. See why? ...