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but put it in perspective for us. what are we seeing there, why is this preview image and what we re hoping to learn, why is it so significant? everyone children ask the question, mommy, daddy, where is the farthest star. well, you are looking at a photograph now of some of the farthest stars that we can see with a space telescope, 100 times more powerful than the aging hubble space telescope. this is spectacular. it is a time machine. it allows us to peer back through time right after the big bang itself. some of the stars in this picture date back 13 billion years into the past giving us a whole new way of looking at the universe. so as we look back 13 billion years, pretty far back, what are we learning from that? well, we begin to understand the expanding universe, the fact that about 13.8 billion years

United statesPreview imageFarthest starSpace telescopeTime machineBig bang13 billion13 8 billion