Can you translate it ?
（1）That which people can see, with the aid of various sorts of telescope, accounts for just 4% of the total mass.（2）What exactly constitutes this dark matter and dark energy remains mysterious, but physicists have recently uncovered some more clues, about the former, at least.
ansers :
1.借助各式各样的望远镜人们可以看到的太空物质也仅占物质总量的4％2.组成暗物质和暗能量确切成分一直很神秘，但是最近物理学家揭开了一些线索，至少是有关暗物质的线索。
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