日本宇宙航空研究开发机构（JAXA）于2025年12月22日在种子岛宇宙中心发射第八枚H3火箭，此前于12月17日发射中止，但二级发动机故障导致Michibiki 5号卫星未能部署。与飞行器失去联系，JAXA正在评估卫星是否不可挽回。
发射于上午10:51从鹿儿岛县种子岛宇宙中心进行，这是将该卫星送入轨道的第三次尝试。虽然初始上升阶段成功，但二级发动机未能正常点火并提前关机，导致所有通信中断，JAXA官员证实：“我们已与火箭失去所有通信。”
Michibiki 5号属于日本准天顶卫星系统（QZSS），旨在实现高精度定位。此次事件凸显了H3火箭持续的开发难题，H3作为H2A火箭的继任者，旨在提升成本效益和可靠性。JAXA已暂停直播报道，并正在调查原因，以指导未来任务。
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The Federal Aviation Administration (FAA) has grounded Blue Origin's New Glenn rocket following a partial failure during its third mission, NG-3, launched Sunday from Cape Canaveral Space Force Station. An upper-stage engine issue prevented the BlueBird 7 satellite from reaching its target 285-mile orbit, achieving only about 95 miles. This incident, the second grounding for the rocket, will halt flights pending investigation.
South Korea postponed the planned launch of its Mir solid-fuel space rocket on Tuesday due to safety issues detected during final preparations, the defense ministry said.
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South Korea's Compact Advanced Satellite (CAS) 500-2 successfully launched from Vandenberg Space Force Base in California on a SpaceX Falcon 9 rocket. The satellite entered low-Earth orbit and made first contact with a ground station in Norway. The Korea AeroSpace Administration (KASA) confirmed it is operating normally.