The new Hubble telescope images have allowed astronomers to take their most detailed look at the Ring Nebula than ever before, revealing an unprecedented view of the nebula’s three-dimensional structure.
“The nebula is not like a bagel, but rather, it’s like a jelly doughnut, because it’s filled with material in the middle,” study leader C. Robert O'Dell, an astronomer with Vanderbilt University in Nashville, Tenn., said in a statement today

“It’s like a jelly doughnut”