pillars

The Eagle Nebula’s Great Pillars

Located in the constellation of Serpens, the Eagle Nebula is a very luminous open cluster of stars surrounded by dust and gas. The three pillars at the center of the image, made famous in an image by the Hubble Space Telescope, are being sculpted by the intense radiation from the hot stars in the cluster.

Credit: National Optical Astronomy Observatory

Divers thought they found a real-life Atlantis after discovering ‘pillars’ and 'paved floors’ off the coast of Greece, but the strange rock formations were actually created by concretion, a natural phenomenon where cement forms in the sediment when microbes use methane that escapes from the sea floor as a source of energy. Source Source 2