"It's just a matter of having enough Artemis launches to build the infrastructure on the Moon by then," he adds, referring to Nasa's Artemis spaceflight programme that aims to send people and equipment to the Moon.
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据新华社报道，澳大利亚警方12月15日说，悉尼邦迪滩发生的枪击事件已造成包括1名作案嫌疑人在内的16人死亡、40人受伤，两名嫌疑人为一对父子。