标签: 火箭

人族一号燃烧液氧甲烷

2023年4月6日 Terran 1 Burns Methalox Image Credit: Relativity / John Kraus Explanation: Relativity’s Terran 1 Rocket is mostly 3D-printed. It burns a cryogenic rocket fuel composed of liquid methane and liquid oxygen (methalox). In this close-up of a Terran 1 launch on the night of March 22 from Cape Canaveral, icy chunks fall through the stunning frame a...

猎鹰9号与狩月

2022年10月14日 The Falcon and the Hunter’s Moon Image Credit & Copyright: Michael Seeley Explanation: The Full Moon of October 9th was the second Full Moon after the northern hemisphere autumnal equinox, traditionally called the Hunter’s Moon. According to lore, the name is a fitting one because this Full Moon lights the night during a time for...

猎鹰九号“星云”

2021年9月4日 A Falcon 9 Nebula Image Credit & Copyright: Dennis Huff Explanation: Not the Hubble Space Telescope’s latest view of a distant galactic nebula, this illuminated cloud of gas and dust dazzled early morning spacecoast skygazers on August 29. The snapshot was taken at 3:17am from Space View Park in Titusville, Florida. That’s about 3 ...

水星-红石3号发射

2021年05月07日 Mercury-Redstone 3 Launch Image Credit: NASA Explanation: Sixty years ago, near the dawn of the space age, NASA controllers “lit the candle” and sent Mercury astronaut Alan Shepard arcing into space atop a Redstone rocket. His cramped space capsule was dubbed Freedom 7. Broadcast live to a global television audience, the historic Merc...

载人1号任务的发射光痕

2020年11月19日 Crew-1 Mission Launch Streak Image Credit & Copyright: Jen Scott Explanation: Leaving planet Earth for a moment, a SpaceX Falcon 9 rocket arced into the early evening sky last Sunday at 7:27 pm EST from Kennedy Space Center’s Launch Complex 39A. This 3 minute 20 second exposure traces the launch streak as seen over watery reflections f...

猎鹰9号伴月

2020年9月5日 A Falcon 9 Moon Image Credit & Copyright: Katie Darby Explanation: Illuminating planet Earth’s night, full moons can have many names. This year the last full moon of northern hemisphere summer was on September 2, known to some as the Full Corn Moon. A few days earlier on August 30 this almost full moon rose just before sunset though, shi...

火箭想要飞得更快,可能还得靠核动力推进

图片来源:Pixabay 美国航空航天局(NASA)和埃隆·马斯克(Elon Musk)都有着出征火星的梦,远距离航行的载人航天飞行任务也终将如期而至。但有一点你可能不会想到,那就是现代火箭的前进速度并没有过去那么快了。 速度更快的航天飞船在很多方面上都占据优势,而核动力火箭(nuclear powered rocket)就是给飞船加速的一种方法。与传统燃烧燃料的火箭或是现代太阳能电推进火箭相比,核动力火箭具有许多优势,但在过去的40年中,美国只有8次航天发射用到了核反应堆。 在2019年,规范核航天飞行的相关法规发生了变化,下一代火箭的工作也已经重新开始了。 为什么要追求速度? 太空旅行的第一步涉及的就是用火箭将飞船发射进入轨道,人们在想到火箭发射时会在脑海中刻画出大型燃烧燃料的发动机,也就是发射火箭,由于地...

长征五号遥三火箭发射回放

12月27日20时45分,长征五号遥三运载火箭在中国文昌航天发射场点火升空,2000多秒后将实践二十号卫星送入预定轨道,发射飞行试验取得圆满成功。此次发射飞行试验主要考核长征五号火箭总体方案、各分系统方案的正确性、协调性,对后续航天任务的相关关键技术进行验证。

清晨发射的阿特拉斯五型火箭

2019 August 9 Atlas at Dawn Image Credit & Copyright: Michael Seeley Explanation: This single, 251-second long exposure follows the early flight of an Atlas V rocket on August 8, streaking eastward toward the dawn from Cape Canaveral Air Force Station, planet Earth. The launch of the United Launch Alliance rocket was at 6:13am local time. Sunrise was not...

SpaceX成功发射“三手”货运飞船

 SpaceX第18次空间站货运补给(CRS-18)任务完整版 来源:SpaceX 北京时间7月26日6时1分,SpaceX在卡角空军基地SLC-40发射平台执行第18次空间站货运补给(CRS-18)任务,给空间站送去大约2268千克(5000磅)的货物。错过直播的小伙伴,可以观看上面的完整版视频。 这一期的有什么看点呢? 来源:SpaceX 首先,这次任务中的货运龙飞船一艘“三手”货运飞船,先前在CRS-6任务(2015年4月)和CRS-13任务(2017年12月)中使用过,这是SpaceX首艘三次前往空间站的货运飞船,为纪念这一成就,这艘龙飞船上贴了两个空间站的标志,同时还有一个阿波罗50周年的标志。 但这并不是最后一个,接下来的CRS-19和CRS-20,也将使用“三手”货运龙飞船。 在昨天的新闻发布会...