This picture was taken at the book party for What Are Gamma-Ray Bursts? at the recent meeting of the American Astronomical Society.
Gamma-ray bursts have been accused of causing mass extinctions here on Earth, but do we really have a good understanding of what they are? In the new book What Are Gamma-Ray Bursts? (part of the new Princeton Frontiers in Physics series), Joshua Bloom gives us the most comprehensive and up-to-date explanation of the discovery and physics of gamma-ray bursts.