Parallel Field Image of Abell S1063
Hubble observed galaxy cluster Abell S1063 with the Advanced Camera for Surveys (ACS) using visible-light filters. Simultaneously, Hubble was able to observe a field parallel to Abell S1063 with the Wide Field Camera 3 (WFC3) using infrared filters. Six months later, the observations were reversed such that WFC3 infrared observations were taken of Abell S1063, while ACS visible-light observations were made on the same parallel field. Together, the ACS and WFC3 filters combine to produce a deep image of both fields. Here, the parallel of Abell S1063 is strewn with galaxies of all shapes and sizes. The Hubble Frontier Field parallel images are a "two-for-the-price-of-one" efficient way to use the telescope to learn more about the early universe.