Globular star cluster M14

This pair of images of a region in the globular star cluster M-14, (located 70,000 light-years away) clearly demonstrate the high spatial resolution of NASA/ESA Hubble Space Telescope, as compared to the view from a ground-based telescope.

The image on the left, taken with the 4-meter telescope at Cerro Tololo Inter-American Observatory in Chile, has a resolution of 1.5 arc seconds. The image on the right, taken with European Space Agency's Faint Object Camera (FOC) aboard HST, yields stellar diameters of 0.08 arc second.