You both might like to learn from here (link inside)

You both might like to learn from here (link inside)

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送交者: silxirt 于 2011-11-02, 14:37:27:

回答: 70%-80% of the total matter is in that vacuum, it is called dark matter 由 silxirt 于 2011-11-02, 14:21:37:

http://video.pbs.org/video/2088252846

It says preview, but on iOS PBS app, you can watch full episode.

I am not expert, but I follow these topics.
Steve might be able to correct me or you.

要不我对科普为什么这么反感呢。 (无内容) - 008 (0 bytes) 2011-11-02, 17:01:13 (626494)