NASA's Hubble telescope spotted what appears to be a smiling face in a galaxy cluster. NASA posted the picture on its website. It shows what looks like two glowing eyes, a button nose and the form of a smile underneath. There is even the shape of a head on the outer edges of the smile. It resembles popular smile emojis used in social media and texting.

NASA says the two eyes are actually very bright galaxies and what looks like a smile is actually arcs caused by what is known as strong gravitational lensing. In this case, the light bends because of the way the source lined up with the lens and the person observing it. The ring is known as an Einstein Ring.

This smiling phenomenon was actually spotted by someone in 2012, and it was entered into Hubble's Hidden Treasure competition. The European Space Agency just released the image this week.

Vineeta Sawkar •

Twitter: @vsawkar