The Siemis 147: Supernova Remnant or also know as the Spaghetti Nebula. Located on the boundary of the constellations Taurus and Auriga. Photo credit: Daniel Lòpez, source in the comments.
The European Southern Observatory (ESO) just released an absolutely beautiful photo taken by the Very Large Telescope of the reflection nebula NGC 2023 roughly 1,500 light-years from earth. (image credit: ESO)