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GlossaryBig Bang The theoretical moment of creation for our universe. In this model, all matter, energy, space, and time sprang from a geometric point known as a singularity. Observations show that the Big Bang occurred about 13.7 billion years ago. The universe has been expanding since the moment of the Big Bang. |
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Copyright ©2008-2013 McDonald Observatory. HETDEX is a collaboration of The University of Texas at Austin, Pennsylvania State University, Texas A&M University, Universitats-Sternwärte Munich, Leibniz Institute for Astrophysics (AIP), Max-Planck-Institut für Extraterrestrische Physik, Institut für Astrophysik Göttingen, and University of Oxford. Financial support is provided by the State of Texas, the United States Air Force, the National Science Foundation and the generous contributions of many private foundations and individuals.
