Stellar Sparkler [1]
The globular star cluster M22 sparkles brilliantly in these two views. The image at left shows the entire cluster, revealing its spherical shape. The one at right, from Hubble Space Telescope, is a zoomed-in view revealing thousands of individual stars. The cluster is in the constellation Sagittarius, near the lid of the "teapot" formed by eight of its stars. [N.A.Sharp/REU program/NOAO/AURA/NSF; NASA/ESA/STSCI]

- Science [3]