NASA Announces Summer 2023 Hottest on Record By Overlook Horizon|2023-09-14T11:54:00-04:00September 14th, 2023|Categories: NASA News|Tags: Artemis, breaking news, nasa, outer space, space, spaceflight| The summer of 2023 was Earth’s hottest since global records began in 1880, according to scientists at NASA’s Goddard Institute of Space Studies (GISS) in New York.