形似星系的火箭螺旋状烟尘
图中显示了一片雪地，后面两旁种满了树木。地平线上有一片不寻常的白色螺旋云。星星点缀着背景，还可以看到淡淡的绿色和红色极光。有关更多详细信息，请参阅说明。
标签： 火箭
猎鹰重型火箭之返回喷燃
2024年1月20日 Falcon Heavy Boostback Burn Image Credit & Copyright: Dennis Huff Explanation: The December 28 night launch of a Falcon Heavy rocket from Kennedy Space Center in Florida marked the fifth launch for the rocket’s reusable side boosters. About 2 minutes 20 seconds into the flight, the two side boosters separated from the rocket’s core...
载人7号“星云”
2023年8月31日 The Crew-7 Nebula Image Credit & Copyright: Michael Seeley Explanation: Not the James Webb Space Telescope’s latest view of a distant galactic nebula, this illuminated cloud of gas and dust dazzled early morning spacecoast skygazers on August 26. The snapshot was taken about 2 minutes after the launch of of a Falcon 9 rocket on the Spac...
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...