Akeno Observatory is a cosmic ray observatory located in Akeno, a town in Yamanashi prefecture, Japan. The observatory is run by the Institute for Cosmic Ray Research (ICRR), based at the University of Tokyo.^[1] Akeno Observatory features AGASA, the Akeno Giant Air Shower Array, which studies the origins of very high energy cosmic rays.^[2]

Construction of the observatory began in 1975, and in 1977 it became the second attached institution with ICRR. Its accomplishments include the observation of a super high energy cosmic ray air shower in 1995 that was previously thought to be impossible.^[3]

See also

• List of astronomical observatories
• List of largest cosmic structures

References

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