Learn how to create a nebula in Photoshop with this detailed step-by-step tutorial. Whether you're an artist, designer, or ...

Currently, the two contending theories are 1) a fast stellar wind producing cometary tails from clumps of dust, or 2) a reverse shock wave propagating from the outer edge of the nebula back toward ...

The Veil Nebula is roughly 2,400 light-years away in the constellation Cygnus. It is the remnants of a star that was roughly 20 times as big as our sun and exploded about 10,000 years ago.