These are the Aurgae nebulae. While both seemingly interconnected nebulae are located in the constellation Auriga, each can be found at different distances from Earth; thus they are two separate regions, instead of one. The appearance of unity is given due to the fact that this is a wide-field view of the region; spanning an impressive 4 degrees in our sky (which is roughly equivalent to 8 full moons).
On the top left, you see IC 405 (also known as the Flaming Star Nebula); an emission nebula that is located about 1,500 light-years from Earth. On the top right, we have IC 410. This one is much farther away, with astronomers estimating that this region can be found some 12,000 light-years away from Earth.
Moreover, you can even see a star cluster, called NGC 1893, tucked away within the nebulae’s clouds.
Finally, you have IC 417 and NGC 1931. They are pictured near the bottom right.
See a larger image here.