The tadpole nebula

NGC1893, a 4 million year old open cluster situated in the constellation of Auriga, which contains the H-alpha region IC410, more commonly known as the Tadpole Nebula (so called because of the two tadpole like structures "swimming" towards the centre of the nebula. It is located 12,000 light-years from Earth, and is a region of ionised hydrogen gas spanning over 100 light-years across that's carved and sculpted by streams of charged particles called stellar winds emanating from open star cluster NGC 1893.