August 25 - 27, 2021
February 26 - 28 2019, DoubleTree by Hilton Hotel, Tucson AZ
April 27 - 29 2016, Madrid, Spain
October 14 - 16 2015, Paris
July 29 - 31 2015, Waikoloa Beach Marriott, Hawai'i
April 1 - 3 2015, Nanjing, China
March 27 - 29 2013, 'Imiloa Astronomy Center of Hawai'i, Hilo, Hawai'i
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