Special & General Relativity Questions and Answers
Can gravitational lens events cause gamma ray bursts to reoccur in the same part of the sky, rather than repeated explosions of the same object?
An interesting possibility. We know next to nothing about what causes gamma ray bursts, let alone those bursts associated with apparently the same spot in the sky which repeat. Until we can track down enough of these bursts to identifiable 'host' objects, we cannot tell if individual explosions are involved, or anything else.
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All answers are provided by Dr. Sten Odenwald (Raytheon STX) for the NASA Astronomy Cafe, part of the NASA Education and Public Outreach program.