(MENAFN - Gulf Times) The Hubble space telescope has spotted what resembles a \"smiley\" in deep space. <\/p>\n
An image published by the US space agency Nasa and its European counterpart ESA, operators of the low-Earth-orbit telescope, shows \"two orange eyes and a white button nose\" along with arcs of light that look like a smile and partial contours of a face. <\/p>\n
According to the space agencies, the \"eyes\" of the happy face are very bright galaxies in a galaxy cluster known as SDSS J10384849 about 4.5bn light-years from Earth in the Ursa Major constellation and the arcs are caused by an effect known as strong gravitational lensing. <\/p>\n
Explained by Einstein's general theory of relativity and first observed nearly a century ago, gravitational lensing is the bending of light by the gravitational field of a massive object. <\/p>\n
In this special case of the phenomenon, a ring is produced because the light source, a gravitational lens and observer are aligned. <\/p>\n
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Read the original: (MENAFN - Gulf Times) The Hubble space telescope has spotted what resembles a \"smiley\" in deep space. An image published by the US space agency Nasa and its European counterpart ESA, operators of the low-Earth-orbit telescope, shows \"two orange eyes and a white button nose\" along with arcs of light that look like a smile and partial contours of a face. Continue reading
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