There is no place in the inner Solar System that is more radio quiet than the far side of the Moon. It seems likely—and even imperative—that scientists will ultimately turn to the Moon as the site for their most ambitious cosmic investigations. By deploying a few million simple radio antennas across a 100-kilometer region of the lunar surface, astronomers could go a long way toward extracting essentially everything that our universe has to tell us about its history, evolution, and origin. The secrets of cosmic inflation may indeed be waiting for us on the far side of Earth’s only moon.
