April 2025: Science History from 50, 100 and 150 Years Ago
Briefly

The article discusses the detection of mysterious gamma rays from space, triggered by satellites launched due to the 1963 Partial Test-Ban Treaty. The gamma ray bursts are short-lived, lasting about 10 seconds, with an average of four detected per year since 1967. The sources of these gamma rays appear to be randomly distributed across the sky, leading to multiple theories regarding their origins, including links to quasars, supernovas, and other celestial phenomena, highlighting ongoing scientific curiosity and investigation.
As a result of the Partial Test-Ban Treaty of 1963, which prohibited nuclear explosions in space, the U.S. launched five satellites to act as monitors.
Each burst lasts about 10 seconds and does not seem to recur, with an average of four bursts per year detected since 1967.
The sources of these gamma rays appear to be distributed randomly over the sky, leading to numerous theories about their origin.
The deteciton of gamma rays has sparked various theories, some relating to quasars, supernovas, and even X-ray sources within our galaxy.
Read at www.scientificamerican.com
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