Scientists have spotted a giant galaxy at the edge of the observable universe. Detecting this huge galaxy (the same size as the Milky Way) was a challenge because of the massive quantities of light coming from the black hole, and if you think you spotted two problems in that sentence, read on.The galaxy, which is 12.8 billion light-years from Earth, is as large as the Milky Way galaxy and harbors a supermassive black hole that contains at least a billion times as much matter as does our Sun"It