The paper "A bright millisecond radio burst of extragalactic origin" by Lorimer et al. (2008) reports the discovery of a highly dispersed, millisecond-duration radio burst with a flux density of 30 Jy, located three degrees from the Small Magellanic Cloud. The burst's properties, including its frequency dispersion and pulse width evolution, suggest an extragalactic origin. The burst was detected in archival data from a 1.4-GHz survey using the Parkes radio telescope. Follow-up observations over 90 hours did not detect any additional bursts, indicating that it was a singular event. The burst's high dispersion measure (DM) and distance suggest it is at least 1 Gpc away, making it one of the most distant known radio sources. The authors estimate the burst's energy release to be around 10^33 to 10^34 J, and its brightness temperature to be around 10^34 K. The burst's unique characteristics and high energy suggest it may represent a new class of astrophysical event, potentially related to merging neutron stars or evaporating black holes. The authors also discuss the implications of such events for cosmological studies and the potential for future observations to detect similar bursts at cosmological distances.The paper "A bright millisecond radio burst of extragalactic origin" by Lorimer et al. (2008) reports the discovery of a highly dispersed, millisecond-duration radio burst with a flux density of 30 Jy, located three degrees from the Small Magellanic Cloud. The burst's properties, including its frequency dispersion and pulse width evolution, suggest an extragalactic origin. The burst was detected in archival data from a 1.4-GHz survey using the Parkes radio telescope. Follow-up observations over 90 hours did not detect any additional bursts, indicating that it was a singular event. The burst's high dispersion measure (DM) and distance suggest it is at least 1 Gpc away, making it one of the most distant known radio sources. The authors estimate the burst's energy release to be around 10^33 to 10^34 J, and its brightness temperature to be around 10^34 K. The burst's unique characteristics and high energy suggest it may represent a new class of astrophysical event, potentially related to merging neutron stars or evaporating black holes. The authors also discuss the implications of such events for cosmological studies and the potential for future observations to detect similar bursts at cosmological distances.