These shockwaves are responsible for the nebula’s distinctive spider-leg-like arcs. Also read: NASA discovers supermassive ...

"A careful examination of the negative," Morehouse said, "convinced me that the structure is a ring of black nebula … [that] forcibly reminds one of the Ring Nebula in Lyra except that it is ...

We are staring "right down the barrel of it, which is really quite surprising to me — we're just lucky." One of the most photographed objects in the night sky is the Ring Nebula, wreckage of a ...