Unraveling the Mysterious Energy Burst from the Early Universe

Astronomers have detected a 16-minute-long burst of energy from the early universe, known as GRB 220627A, which is longer than typical gamma-ray bursts (GRBs). The burst arrived in two powerful bursts from an unknown event 2 billion years into the universe's existence. While the source of the burst appears to be ordinary, its length and double-burst nature have left astronomers puzzled. The likeliest explanation is that the burst is the result of gravitational lensing, where the signal is stretched, distorted, and duplicated by massive objects like galaxies and black holes. Further study and the detection of other stretched-out gamma-ray mirages are needed to better understand this phenomenon.