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Does an active galactic nucleus have superluminal jets ?

现在的星系核有超光速飞机吗？

The concepts of cause and effect - of time flowing in one direction - also shatter in a superluminal world .

因果关系的概念（时间只能在一个方向上流动）也在超光速的世界里破灭了。

Science fiction enthusiasts rejoiced , because superluminal speeds could lead to travel backwards or forwards in time .

这个消息让科幻迷们欢欣鼓舞，因为超光速可能使时间旅行变为现实。

Often there is confusion about the idea that wormholes allow superluminal ( faster-than-light ) space travel .

常常存在有关虫孔能够超光速(比光速更快)空间旅行的混乱观念。

The possibility of time travel was raised 10 years ago when scientists discovered superluminal -- or faster-than-light -- propagation of optical pulses in some specific medium , the team said .

该研究团队称，10年前科学家发现了光脉冲在某些介质中的超光速传播，据此提出了时间旅行的可能性。