Horsehead Nebula: New stars have already formed inside part of it.马头星云: 新的?星已经在其内部形成了.Directly below Alnitak, a close inspection will reveal the Horsehead Nebula.经过仔细查看就可以发现紧挨着参宿一的下方就是马头星云.Light takes about 1500 years to...
Five leading fighter pilots have been captured and paraded before the media.有5名一流的战斗机飞行员被俘，并被在媒体上曝光。The pilots, however, were not as accurate as they should be.然而飞行员并不像他们该达到的水平那样精准。Many pilots are suffering from low mora...