Omega Centauri III Saturn luminous stars in the entire

luminous stars in the entire Milky Way

But the story's not over

This HiRISE image shows Victoria Crater

moving downhill a bit

a hallmark of so-called grand-design spiral galaxies

Omega Centauri III Saturn luminous stars in the entireThe globular star cluster Omega Centauri has caught the attention of sky watchers ever since the ancient astronomer Ptolemy first cataloged it 2,000 years ago. Ptolemy, however, thought Omega Centauri was a single star. He didn't know that the "star" was actually a beehive swarm of nearly 10 million stars, all orbiting a common center of gravity. The stars are so tightly crammed together that astronomers had to wait for the powerful vision of NASA's