ASTRONOMY Hubble discovers "smiley" in space


By scanning the cluster SDSS J1038 4849 galaxies, located 4.5 billion light-years from Earth, the Hubble Space Telescope has photographed several objects whose arrangement resembles the shape of a smiley.


February 12 th, 2015

You can see the cluster of SDSS J1038 4849 galaxies in the photo above. The two "eyes" are actually two galaxies. As for the "smile", it is an optical effect called a "gravitational lens". It is produced by the presence of a massive celestial body (such as a cluster of galaxies or black hole) between the observer and the light source.

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