1.【天】类星体;类星射电源
1.a very bright object in space that looks like a star and produces a lot of energy
1.The research is expected to help nail down estimates of even bigger black holes associated with ancient distant galaxies known as quasars.
这项研究有助于人们对于更大体积的黑洞进行估计，而这种黑洞可能与名为类星体的古老星系有关。
2.STIS can see in ultraviolet, visible and near-infrared and has been used to examine black holes, quasars and planets.
STIS能够观测紫外、可见光和近红外波段，主要用于研究黑洞、类星体及行星。
3.Did you know there's a black hole in the center of our galaxy? No Time Dilation for Distant Quasars? Galactic Monster Mystery Solved.
你知道我们银河系中心有一个黑洞吗？别瞪大眼睛搜寻那遥远的类星体--那没用！银河系大揭秘。
4.The discovery suggests that quasars created at least some galaxies, and perhaps not the other way around.
该发现表明，类星体至少创造了某些星系，或许并不是星系创造了类星体。
5.The supermassive black holes that are still active, however, do not exhibit the same behavioral patterns as the distant quasars.
但是，目前仍活跃的超大质量黑洞，其行为模式与遥远的类星体并不相同。
6.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。
7.The name comes from the fact that the first quasars identified emit mostly radio energy and look much like stars.
这个名字实际上来自首个被确认的类星体，它所发射的绝大部分是射电能并且看上去很像恒星。
8.They are rare, accounting for roughly one out of every 500 observed quasars .
大约每观测500个类星体，才会出现一个这种稀罕的类星体。
9.But a crucial part of the puzzle remains unsolved: How did the universe form monster quasars so early in its history?
但是，这个谜题的一个关键部份仍然悬而未解：宇宙如何能在其早期历史中形成如此巨大的类星体？
10.Quasars are so far away that they constitute the best frame of reference for measuring Earth's rotation rate.
到目前为止，类星体是测量地球自转最好的参照系。