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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日本私人航天公司Space One于3月5日在和歌山县Kii航天港发射Kairos No. 3火箭，但几分钟后中止了飞行。这标志着该公司第三次受挫，该公司旨在成为首个将卫星送入轨道的日本私人实体。
继12月17日发射中止后，日本JAXA于2025年12月22日从种子岛宇宙中心发射了第八枚H3火箭，但二级发动机过早关机后暂停了直播。该火箭搭载内阁府的引路5号卫星，用于日本准天顶卫星系统（QZSS）。
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JAXA的第八枚H3火箭于2025年12月23日因二级发动机问题失败，无法部署内阁府的Michibiki No. 5卫星，如最初报道。社长山川浩志道歉，并誓言迅速查明原因。此事件危及日本用于高精度定位的准天顶卫星系统。
South Korea's homegrown Nuri space rocket was transported and positioned upright on the launchpad at the Naro Space Center on Tuesday, despite a weather delay. The procedure paves the way for its fourth launch scheduled for early Thursday. Space authorities are carrying out final preparations, including fuel injection.
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The Hanbit-Nano rocket, from South Korean startup Innospace, experienced an anomaly less than two minutes after takeoff from the Alcântara Launch Center in Maranhão on the night of December 22, 2025, thwarting what would have been the first orbital launch in Brazilian history. The vehicle was lost during the first stage's propulsion phase, and the onboard payloads were not recovered. Despite the setback, the incident is seen as normal for a new launcher's initial test.
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