When Dead Stars Collide! – NASA Science

After that initial burst of gamma rays, the debris from the explosion continued to glow, fading as it expanded outward. Our Swift, Hubble, Chandra, and Spitzer telescopes, along with a number of ground-based observatories, were poised to look at this afterglow from the explosion in ultraviolet, optical, X-ray, and infrared light. Such coordination between satellites is something that we’ve been doing with our international partners for decades, so we catch events like this one as quickly as possible and in as many wavelengths as possible.

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