美航天局原定3月的载人绕月任务再次推迟

Core Points - NASA's Artemis 2 mission has been postponed due to technical issues, specifically problems with helium flow through the spacecraft system during routine pressurization [1] - The spacecraft is currently in a safe state, but the rocket must be retracted to the assembly building for repairs, eliminating the March launch window [1] - The Artemis program aims to return astronauts to the Moon, with Artemis 1 having completed its unmanned mission in November 2022, and Artemis 3 planned for crewed lunar landing, pending the development of the lunar lander [1] Summary by Category - Technical Issues - NASA's Artemis 2 mission will undergo rocket retraction due to helium flow issues similar to those encountered in the Artemis 1 mission [1] - The potential faults may involve components at the launch tower connection or internal valve systems of the spacecraft [1] - Mission Timeline - The planned launch date for Artemis 2 was March 6, but this has been canceled due to the need for repairs [1] - The Artemis program was announced in 2019, with Artemis 1 successfully completing its mission in November 2022 [1] - Future Plans - Following Artemis 2, NASA intends to advance the Artemis 3 mission, which aims to return astronauts to the Moon [1] - The Artemis 3 mission is contingent on the ongoing development of the lunar lander [1]