What are matter, energy, space, and time? What is the nature of
the universe and what is it made of? How did we get here and
where are we going? These are the kinds of questions physicists
ask. To discover the basic building blocks and structure of the
universe is the great challenge of particle physics. The
landmark report titled Quantum Universe describes the quest of
particle physicists to explain the universe in terms of nine key
questions. In pursuit of answers to these questions, the Office
of High Energy Physics supports researchers, experiments, and
facilities that hold a promise to revolutionize our
understanding of the universe. The Birth of the Universe