“Is space digital?” staff editor Michael Moyer poses this fundamental question in our issue’s cover story. We often speak of the fabric of space, as if it were continuous, but is it instead a kind of patchwork of jittering, foamy quantized bits? Craig Hogan, a physicist at the University of Chicago and director of the Fermilab Particle Astrophysics Center, is hoping to find out. He and his colleagues plan an experiment that will attempt to measure how information, matter and spacetime behave at the tiniest of scales--the Planck scale. If the experiment succeeds, it will change what we currently think we know about the nature of space and time , suggesting a new architecture of physics.
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