Quasars are the highly energetic cores of distant galaxies.
类星体是遥远星系的极为活跃的核心体。
Spacewalking astronauts installed an 88-million-dollar spectrograph designed to detect faint light from faraway quasar .
太空漫步宇航员安装8．8千万美元的光谱仪，用于探测来自遥远类星体的微弱光线。
Scientists study quasars to learn more about the early universe.
科学家研究类星体以了解更多关于早期宇宙的知识。
Astronomers use powerful telescopes to observe quasars in distant galaxies.
天文学家使用强大的望远镜观测遥远星系中的类星体。
Quasars emit intense radiation and are among the brightest objects in the universe.
类星体发射强烈辐射，是宇宙中最明亮的物体之一。
The discovery of quasars revolutionized our understanding of the cosmos.
类星体的发现彻底改变了我们对宇宙的理解。
Some quasars are billions of light-years away from Earth.
一些类星体距离地球数十亿光年。
Quasars are powered by supermassive black holes at the centers of galaxies.
类星体由星系中心的超大质量黑洞提供能量。
The light from quasars can help astronomers study the composition of interstellar gas.
类星体的光线可以帮助天文学家研究星际气体的组成。
Quasars are believed to play a crucial role in galaxy formation and evolution.
人们相信类星体在星系形成和演化中扮演着关键的角色。
The energy output of quasars can outshine entire galaxies.
类星体的能量输出可以超过整个星系的亮度。
Quasars are fascinating objects that continue to intrigue scientists and astronomers.
类星体是令科学家和天文学家着迷的迷人物体。
Quasars are the highly energetic cores of distant galaxies.
类星体是遥远星系的极为活跃的核心体。
Spacewalking astronauts installed an 88-million-dollar spectrograph designed to detect faint light from faraway quasar .
太空漫步宇航员安装8．8千万美元的光谱仪，用于探测来自遥远类星体的微弱光线。
Scientists study quasars to learn more about the early universe.
科学家研究类星体以了解更多关于早期宇宙的知识。
Astronomers use powerful telescopes to observe quasars in distant galaxies.
天文学家使用强大的望远镜观测遥远星系中的类星体。
Quasars emit intense radiation and are among the brightest objects in the universe.
类星体发射强烈辐射，是宇宙中最明亮的物体之一。
The discovery of quasars revolutionized our understanding of the cosmos.
类星体的发现彻底改变了我们对宇宙的理解。
Some quasars are billions of light-years away from Earth.
一些类星体距离地球数十亿光年。
Quasars are powered by supermassive black holes at the centers of galaxies.
类星体由星系中心的超大质量黑洞提供能量。
The light from quasars can help astronomers study the composition of interstellar gas.
类星体的光线可以帮助天文学家研究星际气体的组成。
Quasars are believed to play a crucial role in galaxy formation and evolution.
人们相信类星体在星系形成和演化中扮演着关键的角色。
The energy output of quasars can outshine entire galaxies.
类星体的能量输出可以超过整个星系的亮度。
Quasars are fascinating objects that continue to intrigue scientists and astronomers.
类星体是令科学家和天文学家着迷的迷人物体。
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