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1·It would seem sensible to seek the source of these in the universe's most conspicuous energy factories: quasars and gamma-ray bursts billions of light-years away from Earth.

在宇宙中最引人注目的能量工厂——距离地球数十亿光年的类星体和伽马射线爆发——中寻找这些物质的来源似乎是明智的。

2·The extension of astronomy from visible light to radio waves to x-rays and gamma rays never failed to lead to the discovery of unusual objects such as radio galaxies, quasars, and pulsars.

从可见光扩展到无线电波，再到 X 射线和伽马射线，天文学总是会发现不寻常的物体，如射电星系、类星体和脉冲星。

3·The black holes in question are at the centres of quasars.

我们所讨论的黑洞位于类星体的中心。

4·The light in question comes not from individual stars but from quasars.

正在讨论的光并非源于某颗恒星，而是源于类星体。

5·Quasars are perhaps the most ravenous and immortal beasts in the universe.

类星体就像是宇宙中最贪得无厌，最无法无天的怪家伙。

6·An unusual class of objects, ULXs emit more X-rays than stars, but less than quasars.

一类不寻常的对象，超亮度X射线源比恒星释放出更多的X射线，但比类星体的少。

7·Energy is injected into space by quasars in the form of fast, nonrelativistic particles.

能量是以快速非相对论性粒子的形式由类星体注入空间的。

8·It has measured the precise distance to a million galaxies and has discovered about 500,000 quasars.

至今它已经精确测量出了百万个星系和偶们的距离，外加发现了50万个类星体。

9·It has measured the precise distance to a million galaxies and has discovered about 500, 000 quasars.

至今它已经精确测量出了百万个星系和偶们的距离，外加发现了50万个类星体。

10·Quasars are the very active centers of galaxies though to surround the central supermassive black hole.

类星体是星系中最活跃的中心，尽管他们围绕着中心特大质量黑洞。

类星体

1·The extension of astronomy from visible light to radio waves to x-rays and gamma rays never failed to lead to the discovery of unusual objects such as radio galaxies, quasars, and pulsars.

从可见光扩展到无线电波，再到 X 射线和伽马射线，天文学总是会发现不寻常的物体，如射电星系、类星体和脉冲星。

2·It would seem sensible to seek the source of these in the universe's most conspicuous energy factories: quasars and gamma-ray bursts billions of light-years away from Earth.

在宇宙中最引人注目的能量工厂——距离地球数十亿光年的类星体和伽马射线爆发——中寻找这些物质的来源似乎是明智的。

3·Just last week, the first possible direct evidence was announced for dark matter halos around early quasars.

在上周，第一份可能是早期类星体周围的暗物质环的直接证据刚刚公布。

4·In 1997 Webb's team at the University of New South Wales in Sydney analysed the light reaching Earth from distant quasars.

1997年，在悉尼新南威尔士大学，韦伯的团队分析了从遥远的类星体到达地球的光。

5·Their colleagues might be happy probing to the edge of the cosmos looking for exotic things like black holes and quasars and dark matter.

他们的天文学同僚们或许很乐意探索宇宙的边缘以寻找奇特的物质，比如黑洞、类星体和暗物质。