It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
This image was acquired from
Keywords from Image Description:
mice galaxies micegalaxies ngc ngc black background outdoor Advanced Camera for Surveys ACS the newest camera on NASA Hubble Space Telescope has captured spectacular pair of galaxies engaged in celestial dance of cat and mouse or in this case mouse and mouse. Located million lightyears away in the constellation Coma Berenices the
Page 2017 Free-images.com. All images are Public Domain