CNN Space and Defense Correspondent Kristin Fisher hosts an inside look at the most powerful telescope ever built and the discoveries it has revealed.The James Webb Space Telescope was built with the efforts and cooperation of more than 10,000 individuals, three space agencies, many countries, and ten billion dollars. Two years after its launch, the Webb Telescope is acting as a time machine, shedding light on deep space and dark matter that may even allow us to rewrite the first chapters of the history of the universe."Webb is one of the most incredible things ever built by humans. But it's only as good as the scientists that get to use it," said Fisher. "It's up to them to come up with the questions that the telescope will then try to answer, and these are questions that cut to the core of why we're all here and what it all means."While the Webb facility is open to the public and anyone can submit a proposal for observation time with the telescope, Fisher speaks with some lucky astronomers that mission control first approved to further their research with some granted mere minutes. Fisher also sits down with NASA Administrator Bill Nelson, who speaks on the telescope's potential to answer two of science's most intriguing questions – where do we come from, and are we alone?