M14 – Globular Cluster
This image of M14 was assembled using both infrared and visible-light observations from Hubble. Its stair-step appearance results from the design of the camera used to take the exposures. The camera consisted of four light detectors, one of which provided a higher resolution but had a smaller field of view than the other three. Because the detector with the higher resolution did not cover as much area as the others, black regions are left around its image segment when the exposures from all four detectors are combined into one picture.
Credits: NASA, ESA, STScI and F. Ferraro (Universita di Bologna)