supernova
简明释义
n. [天] 超新星
复 数 s u p e r n o v a e 或 s u p e r n o v a s
英英释义
单词用法
超新星遗迹，超新星残骸 |
同义词
| 恒星爆炸 | The supernova was one of the brightest events in the galaxy. | 这次超新星是银河系中最亮的事件之一。 |
反义词
例句
1.Asteroid impact can threaten us, or a supernova explosion.
舒尔茨·马库奇说，“小行星冲撞或者超新星爆发都能威胁到我们。
2.Have you ever seen picture of a supernova?
你见过超新星的照片么？
3.It is the remnant of a supernova that was recorded by Chinese and Arab astronomers in 1054.
早在1054年，中国和阿拉伯天文学家就有关于它是超新星残余的记载。
4.Future fireworks are forthcoming, for the star will someday explode as a supernova.
这颗恒星总有一天会爆炸成为超新星，未来即将在这里看到更美的空中烟火。
5.One was the Supernova Cosmology Project, at the University of California, Berkeley, led by Saul Perlmutter.
一个是超新星宇宙学项目，在美国伯克莱加州大学被索尔•珀尔玛特所领导。
6.Now consider a supernova explosion.
现在考虑一次超新星爆发。
7.Hubble's cluster Lensing and Supernova Survey - CLASH - is charting the distribution of dark matter in 25 clusters.
哈勃的集群透镜和超新星调查显示将暗物质的分布分成了25个部分。
8.As stars explode in a supernova, most of their energy streams out as neutrinos.
当恒星在超新星中爆炸时，它们能量流中的大部分以中微子的形式跑了出来。
9.The explosion of a supernova 超新星 can outshine an entire galaxy for a short period.
一颗超新星的爆炸可以在短时间内比整个星系还要亮。
10.Astronomers study the remnants of a supernova 超新星 to understand the life cycle of stars.
天文学家研究超新星的遗迹，以了解恒星的生命周期。
11.The light from a distant supernova 超新星 can take millions of years to reach Earth.
遥远的超新星的光可能需要数百万年才能到达地球。
12.In 1054 AD, a famous supernova 超新星 was observed in the Crab Nebula.
在公元1054年，一颗著名的超新星在蟹状星云中被观察到。
13.The study of supernova 超新星 explosions helps scientists learn about dark energy.
对超新星爆炸的研究帮助科学家了解暗能量。
作文
The universe is a vast and mysterious place, filled with wonders that often leave us in awe. One of the most spectacular phenomena in the cosmos is the occurrence of a supernova, which is an enormous explosion that takes place at the end of a star's life cycle. As we delve into the fascinating world of supernova events, we come to appreciate not only their beauty but also their significance in the grand tapestry of the universe.A supernova occurs when a star exhausts its nuclear fuel. In simpler terms, stars generate energy through nuclear fusion, converting hydrogen into helium and releasing immense amounts of energy in the process. However, once a star runs out of fuel, it can no longer support itself against the gravitational forces that pull it inward. This imbalance leads to a catastrophic collapse, resulting in a powerful explosion known as a supernova. There are two primary types of supernova: Type I and Type II. Type I supernova occurs in binary systems where one star siphons material from its companion until it reaches a critical mass, leading to a runaway fusion reaction. On the other hand, Type II supernova happens when a massive star, typically more than eight times the mass of our Sun, runs out of fuel and collapses under its own gravity. This type of explosion is often accompanied by the formation of a neutron star or even a black hole.The brightness of a supernova can outshine entire galaxies for a brief period, making them visible across vast distances. This incredible luminosity allows astronomers to study these cosmic events and gather valuable information about the universe's expansion and the life cycles of stars. Observing supernova explosions helps scientists understand the chemical composition of the universe, as these events are responsible for dispersing heavy elements like carbon, oxygen, and iron into space. These elements eventually contribute to the formation of new stars, planets, and even life itself.In addition to their scientific importance, supernova events have also captured the imagination of artists and writers throughout history. The sheer drama of a star exploding in a brilliant flash of light serves as a powerful metaphor for transformation and renewal. Many cultures have myths and legends that incorporate celestial events, and supernova occurrences are no exception. They remind us of the transient nature of existence and the beauty that can arise from destruction.In conclusion, the phenomenon of a supernova is a remarkable testament to the dynamic nature of our universe. It embodies the cycle of life and death, creation and destruction. As we continue to study these cosmic explosions, we not only enhance our understanding of the universe but also deepen our appreciation for the intricate connections between all things. The next time you gaze up at the night sky, remember that each twinkling star may one day meet its fate in a spectacular supernova explosion, leaving behind a legacy that contributes to the ongoing story of the cosmos.
宇宙是一个广阔而神秘的地方，充满了让我们惊叹的奇观。在宇宙中，最壮观的现象之一就是超新星的发生，这是一颗恒星生命周期结束时发生的巨大爆炸。当我们深入探讨超新星事件的迷人世界时，我们不仅欣赏它们的美丽，还认识到它们在宇宙大画卷中的重要性。超新星发生在一颗恒星耗尽其核燃料时。简单来说，恒星通过核聚变产生能量，将氢转化为氦，并释放出巨大的能量。然而，一旦恒星耗尽燃料，就无法再抵御向内的引力，这种失衡导致了灾难性的崩溃，从而产生了一次强大的爆炸，称为超新星。超新星主要有两种类型：类型I和类型II。类型I超新星发生在双星系统中，其中一颗恒星从伴星吸取物质，直到达到临界质量，导致失控的聚变反应。另一方面，类型II超新星发生在一颗质量通常超过我们太阳八倍的巨大恒星耗尽燃料并在自身重力下崩溃时。这种类型的爆炸通常伴随着中子星或甚至黑洞的形成。超新星的亮度可以在短时间内超过整个星系，使其在广阔的距离上可见。这种令人难以置信的光度使天文学家能够研究这些宇宙事件，并收集有关宇宙扩张和恒星生命周期的宝贵信息。观察超新星爆炸帮助科学家理解宇宙的化学组成，因为这些事件负责将碳、氧和铁等重元素散布到太空中。这些元素最终促成新恒星、行星甚至生命的形成。除了科学重要性，超新星事件还在历史上吸引了艺术家和作家的想象力。一颗恒星在耀眼的光芒中爆炸的戏剧性场景成为了转变和重生的有力隐喻。许多文化都有包含天文事件的神话和传说，而超新星事件也不例外。它们提醒我们存在的短暂性以及从毁灭中产生的美丽。总之，超新星现象是我们宇宙动态性质的显著证明。它体现了生命与死亡、创造与毁灭的循环。当我们继续研究这些宇宙爆炸时，我们不仅增强了对宇宙的理解，也加深了对万物之间复杂联系的欣赏。下次当你仰望夜空时，请记住，每一颗闪烁的星星可能会在壮观的超新星爆炸中迎来它的命运，留下一个为宇宙的持续故事做出贡献的遗产。
