Two years ago, researchers made the unusual discovery that in some specific situations in space, gamma-ray burst pulses repeated themselves as if they were going backward in time. Astronomers now revealed the reason behind the time reversibility effect. Researchers from the College of Charleston and the Michigan Technological University made estimates to show that the gamma-ray bursts could fall into that faster-than-light category. The researchers believe their model provides better explanations for the characteristics of gamma-ray burst light curves than models that don’t include time reversibility.