This is the Simeis 147, a supernova remnant known by many names. It is also cataloged as Sharpless 2-240, and the Spaghetti Nebula, probably because of its reddish appearance.
Seen toward the boundary of the constellations Taurus and Auriga, it covers nearly 3 degrees or 6 full moons on the sky. That's about 150 light-years at the stellar debris cloud's estimated distance of 3,000 light-years. This composite includes image data taken through narrow-band filters where reddish emission from ionized hydrogen atoms and doubly ionized oxygen atoms in faint blue-green hues trace the shocked, glowing gas.
Looks more like a brain to me, but what do you think?
(Image Credit: Georges Attard/ NASA)