An image taken by the NASA/ESA Hubble Space Telescope has people talking, and it's not entirely because of the phenomenon pictured.

This image of the galaxy cluster SDSS J1038+4849 appears to show the cluster "smiling."

The two orange eyes are made up of very bright galaxies, and the smile lines are arcs caused by , according to NASA.

The event occurs when the gravitational pull between the two clusters is so strong that it , according to CNN.

The object was studied by Hubble'sWide Field and Planetary Camera 2 (WFPC2) and Wide Field Camera 3 (WFC3). The image was entered into Hubble's Hidden Treasures image processing competition by contestant Judy Schmidt.

MORE FROM WEATHER.COM: Amazing Hubble Satellite Images

April 24 marks the 25th anniversary of the Hubble Telescope. To celebrate, NASA and the European Space Agency, which jointly run the telecope, released this image of the star cluster Westerlund 2. (NASA/ESA/Hubble Heritage Team/A. Nota/Westerlund 2 Science Team)