新华社洛杉矶9月12日电（记者谭晶晶）美国蓝色起源公司的“新谢泼德”飞行器12日进行不载人太空试飞，火箭在发射后出现故障并坠毁，没有造成人员伤亡。

二 |     QUETTA, Pakistan -- Gunmen shot and killed six construction workers overnight in the volatile southwestern Baluchistan province, Pakistani police said Saturday.Police officer Hidayatullah Dashti said gunmen opened fire overnight at eight construction workers in the city of Turbat, about 377 miles (about 606 kilometers) south of Quetta — the capital of the province. Two survived, he said, and were hospitalized for treatment. Dashti said the workers were part of a private construction project in the city.No group immediately claimed responsibility for the attack.For nearly two decades, Baluchistan has been the scene of a low-level insurgency by the Baluchistan Liberation Army and other separatist groups demanding independence from the central government in the capital, Islamabad. Baluch separatists also often target people from Punjab. Punjabi and Sindhi workers were previously targeted. Although the government says it has quelled the insurgency, violence in the province has persisted.Islamic militants also operate in the region.。这次试飞在蓝色起源公司位于美国得克萨斯州西部的一处发射场进行。该公司在网站上介绍说，火箭在发射后不久出现故障，太空舱逃生系统成功启动，将没有载人的太空舱与火箭分离。随后火箭坠毁于地面，太空舱打开降落伞落回地面，没有人员伤亡。据介绍，蓝色起源公司自2012年起对“新谢泼德”飞行器及其安全系统进行飞行测试，这是“新谢泼德”飞行器第23次太空试飞。“新谢泼德”飞行器的设计目标是将宇航员和科研载荷送入太空，其飞行高度可达约107千米，超过距地表约100千米的“卡门线”，这是国际航天界定义的地球大气层与太空的边界。蓝色起源公司表示，在此次试飞前，“新谢泼德”飞行器已连续成功完成22次飞行测试，其中包括3次逃生测试，表明飞船的逃生系统能够在飞行任何阶段安全启动。