If explore for the earth with long time scale, the earth changes may emerge from solar system, and the earth catastrophisms may emerge from Galactic System.

从长时间尺度看，在地球绕太阳运动过程中会涌现出全球变化特性；

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Does the passage of Planet X usually coincide with the passage of our solar system through the galactic center?

是否行星x过境通常与我们的太阳系通过银河系的中心同时发生呢？

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This has to do with our Solar system that is almost at the Galactic Equator.

这与我们的太阳系几乎处在银河系的赤道有关。

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The idea is players will create their own legend as they explore the solar system in an effort to save the Earth in a galactic treasure hunt, of sorts.

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Blu licenses an industrial-grade engineering software system called CATIA used by Boeing to design airliners, Virgin Galactic to build its suborbital space ship and automakers to create cars.

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Virgin Galactic recently signed a deal with the Houston company Nanoracks to design and build SS2's payload mounting system.

BBC: Virgin spaceship aims to be science lab