智宇航天科技有限公司（Z-Trak Space）宣布达成一项合作，将开发利用超临界二氧化碳为小型火箭提供冷发射系统的技术。
这家总部位于湖南株洲的公司于去年成立，此次与赤阳航天动力技术有限公司建立了合作伙伴关系。该消息于周一公布，并于周二发布了声明。
该技术利用超临界二氧化碳产生高压气体，将火箭弹出至空中。随后火箭发动机在预定高度点火，从而避免了废气与地面平台之间的接触。
智宇航天表示，该方法有望实现低成本、高频次、快速响应的商业发射，并从根本上改变小型液体燃料运载火箭的发射模式。
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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.
The Chinese Academy of Sciences launched a research programme on Monday to study low-altitude hypersonic flight technology.
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A Long March-12 rocket launched last week used a new high-energy synthetic kerosene that increased payload capacity by 10 percent.
A new report from NASA’s Office of Inspector General finds that launch facilities at Kennedy Space Center are aging and struggling to meet rising demand from commercial rockets. The assessment highlights limits on roads, gas supplies, and pads as SpaceX and Blue Origin plan frequent heavy-lift flights.
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A Chinese research team has successfully tested a guided projectile prototype for an electromagnetic rail gun, with the device surviving extreme conditions and recording its flight.