The US National Aeronautics and Space Administration (Nasa) announced late last week that it had chosen August 29 as the date for its first launch attempt of its Artemis I Moon mission. The backup dates, should it not prove possible to launch on August 29 (for example, due to bad weather), were also announced: September 2 and September 5. In each case, there was a ‘launch window’ within the day: in the case of August 29, this window lasted two hours, starting at 08h33 US Eastern Daylight Time (14h33 South African time). Should Artemis I be launched on August 29, its mission would last some 42 days, with splashdown back on Earth planned for October 10.
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