galaxy

简明释义

英[ˈɡæləksi]美[ˈɡæləksi]

n. 星系；银河，银河系（the Galaxy）；群英，人才荟萃

复 数 g a l a x i e s

英英释义

单词用法

同义词

反义词

例句

1.The net result is a continuous flow of gas, starting as hot gases in intergalactic space and ending as a drizzle of cool gas called a "cooling flow," falling into the central galaxy.

最终的结果是一股持续的气体流，开始是星系间的热气体，结束时是一股被称为“冷却流”的少量冷气体，落入星系中央。

2.Traveling through the country a couple of weeks ago on business, I was listening to the talk of the late UK writer Douglas Adams' masterwork "The Hitchhiker's Guide to the Galaxy" on the radio.

出差几周前到这个国家旅游时，我在收音机上收听关于已故的英国作家道格拉斯·亚当斯的杰作《银河系漫游指南》的相关评论。

3.The position of the galaxy center is misinterpreted by an optical flare of the jet itself.

星系中心的位置被射流本身的光学耀斑所曲解。

4.Is this one galaxy or two?

这是一个星系还是两个？

5.Since the lifetime of a planet like ours is several billion years, we can expect that, if other civilisations do survive in our galaxy, their ages will range from zero to several billion years.

由于我们这样的行星的寿命是几十亿年，我们可以预测，如果我们星系中有其他生物生存，它们的年龄将从零到几十亿岁不等。

6.The physicist Fabian reasoned that as intergalactic gas cools, the cooler gas shrinks inward toward the center of the galaxy.

物理学家费边推断，当星系间的气体冷却时，较冷的气体向星系中心收缩。

7.According to previous speculation, these strands were gases that had been blown out by an explosion in the galaxy.

根据先前的推测，这些气体束是在一次星系的爆炸中炸出来的。

8.The Milky Way is the galaxy we live in.

银河是我们所居住的星系。

9.Astronomers discovered a new galaxy far away from Earth.

天文学家发现了一个离地球很远的新星系。

10.Our galaxy contains billions of stars.

我们的星系包含数十亿颗恒星。

11.The Andromeda galaxy is on a collision course with our galaxy.

仙女座星系正与我们的星系发生碰撞。

12.Many science fiction movies depict life in other galaxies.

许多科幻电影描绘了其他星系中的生命。

作文

The universe is a vast expanse filled with countless wonders, and among these wonders are the magnificent structures known as galaxies. A galaxy is a massive system that consists of stars, stellar remnants, interstellar gas, dust, and dark matter, all bound together by gravity. Our own home, the Milky Way, is just one of billions of galaxies that populate the universe. Each galaxy has its own unique characteristics, shapes, and sizes, which makes the study of galaxies an exciting field in astronomy. The Milky Way galaxy is a barred spiral galaxy that contains hundreds of billions of stars, including our Sun. It is estimated to be about 100,000 light-years in diameter and is home to a variety of celestial objects, including planets, moons, asteroids, and comets. The beauty of the Milky Way can be seen on clear nights when we gaze up at the sky and observe the dense band of light formed by the stars within our galaxy. This band is a reminder of the vastness of space and our place within it. Beyond our own galaxy, there are many other types of galaxies. For instance, some galaxies are elliptical in shape, which means they have a more rounded appearance and lack the distinct arms of spiral galaxies. Others, like irregular galaxies, do not fit neatly into the traditional categories and often have chaotic shapes. Each type of galaxy provides astronomers with valuable information about the formation and evolution of the universe. The study of galaxies goes beyond mere observation; it also involves understanding their dynamics and interactions. Galaxies can collide and merge, leading to the formation of new galaxies and altering the structure of existing ones. These interactions can trigger star formation, resulting in the birth of new stars in regions previously devoid of activity. Such phenomena highlight the interconnectedness of the cosmos and the ever-changing nature of galaxies. Moreover, the exploration of distant galaxies allows scientists to look back in time. Since light takes time to travel, observing a galaxy that is millions of light-years away means we are seeing it as it was millions of years ago. This capability offers insights into the early universe and the processes that led to the formation of galaxies and stars. In recent years, advancements in technology have led to the discovery of even more galaxies. Telescopes such as the Hubble Space Telescope and the recently launched James Webb Space Telescope have provided unprecedented views of the universe, revealing galaxies that were previously hidden from our sight. These discoveries continue to challenge our understanding of the cosmos and inspire future generations of astronomers. In conclusion, the term galaxy encompasses a vast array of structures and phenomena that are fundamental to our understanding of the universe. From the beautiful spiral arms of the Milky Way to the enigmatic shapes of distant galaxies, each galaxy tells a story of cosmic evolution and the intricate dance of celestial bodies. As we continue to explore the universe, we deepen our appreciation for the galaxies that surround us and the mysteries they hold. The study of galaxies not only enriches our knowledge of the cosmos but also reminds us of our place within this magnificent universe.

宇宙是一个充满无数奇观的广袤空间，其中最宏伟的结构之一便是被称为星系的壮丽系统。星系是一个巨大的系统，由恒星、恒星残骸、星际气体、尘埃和暗物质构成，所有这些都被引力束缚在一起。我们自己的家——银河系，只是数十亿个遍布宇宙的星系中的一个。每个星系都有其独特的特征、形状和大小，这使得对星系的研究成为天文学中一个令人兴奋的领域。 银河系是一个棒旋涡星系，包含数百亿颗恒星，包括我们的太阳。它的直径约为100,000光年，家园里有各种天体，包括行星、卫星、小行星和彗星。当我们在晴朗的夜晚仰望天空，观察到由我们星系内的恒星形成的密集光带时，可以看到银河系的美丽。这条光带提醒着我们空间的广阔以及我们在其中的位置。 在我们自己的星系之外，还有许多其他类型的星系。例如，有些星系呈椭圆形，这意味着它们具有更圆的外观，并且缺乏螺旋星系的明显臂部。其他如不规则星系，则不符合传统类别，通常具有混乱的形状。每种类型的星系都为天文学家提供了有关宇宙形成和演化的重要信息。 对星系的研究不仅仅是观察；还涉及理解它们的动态和相互作用。星系可以相互碰撞和合并，导致新星系的形成并改变现有星系的结构。这些相互作用可以触发恒星形成，导致以前没有活动的区域诞生新恒星。这些现象突显了宇宙的相互联系及星系的不断变化特性。 此外，探索遥远的星系使科学家能够回顾过去。由于光需要时间传播，观察到一个数百万光年远的星系意味着我们看到的是数百万年前的样子。这种能力为我们提供了对早期宇宙的洞察，以及导致星系和恒星形成的过程。 近年来，技术的进步使得发现更多的星系成为可能。哈勃太空望远镜和最近发射的詹姆斯·韦伯太空望远镜等望远镜提供了前所未有的宇宙视野，揭示了之前隐藏在我们视线中的星系。这些发现不断挑战我们对宇宙的理解，并激励未来一代天文学家。 总之，星系这一术语涵盖了大量的结构和现象，这些都是我们理解宇宙的基础。从银河系美丽的螺旋臂到遥远星系的神秘形状，每个星系都讲述着宇宙演化的故事以及天体之间错综复杂的舞蹈。随着我们继续探索宇宙，我们对环绕我们的星系及其蕴藏的奥秘有了更深的欣赏。对星系的研究不仅丰富了我们对宇宙的认识，也提醒我们在这个宏伟宇宙中的位置。