SMRTR Science & EngineeringJun 24, 2026Live Science

China's Einstein Probe detected a mysterious cosmic explosion — and scientists have no idea what caused it

SMRTR summary

China's Einstein Probe detected a mysterious double X-ray burst in March 2024 that baffled scientists — it behaves like a gamma-ray burst but produced no detectable gamma rays. No known cosmic event matches its pattern, leaving researchers puzzled about what caused this unprecedented "gamma-ray-dark" explosion.

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