Scientists have watch 574 antecedently unsung massive Galax urceolata using theVISTA Telescope . The objects are the first giant extragalactic nebula that formed in the universe , between 1 and 1.5 billion eld after the Big Bang .
The galaxy have a mass of at least 50 billion times that of the Sun , which is comparable to our Milky Way . Moreover , the scientists found doubly as many of these astronomical giants than expected , which contradicts our current model of galaxy organization . Larger galaxies , they therefore reason , must have been able to form in the early universe much more quickly than believed .
" We uncovered 574 new massive galaxy – the largest sampling of such hidden galaxies in the former universe ever foregather , " explained Karina Caputi , lead source of the subject area , in astatement . " Studying them allow us to answer a mere but important question : when did the first massive galaxies appear ? "
uranologist think that the seeds of thefirst stars and galaxiesbegan to form around 150 million eld after the Big Bang , with structure in the universe organise in a bottom - up hierarchy . Small thing were create first , and these then merged to form large objects . The unconscious process is obtuse , however , and giant galaxies are assumed to take billions of twelvemonth to mold . But with such an abundance of monumental galaxies present in the other universe , this work paint a picture that may not be the case .
The exact details of how galaxy first form and grow mass are still mysterious , and solving this mystery is one of the skill goals of the VISTA study . The telescope is being used to survey the entire southern sky , and it is lento creating a nose count of all remote galaxies .
" We found no evidence of these massive galaxies in the beginning than around one billion years after the Big Bang , so we ’re confident that this is when the first massive Galax urceolata must have formed,“addedHenry Joy McCracken , a co - writer on the paper .
Based on the bit of object mention by the team , the vast majority of the giant beetleweed honor in the universe today already be 10 billion eld ago . These object are going receive follow - up watching from current and proposed telescopes , which will hopefully provide more clues on how these monolithic galaxies formed .
The paper is published in theAstrophysical Journal .