Dark matter is believed to be part of the missing mass.

暗物质也被认为是遗失质量的一部分。

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If so, the mystery of dark matter (much of the universe's missing mass) could be solved in addition to creating a more formidable standard model of physics.

如果是这样的话，暗物质(宇宙中遗失的大团中的很多)的神秘性在创造出一个物理学上更强大的标准模型的条件下就可以被揭开了。

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Astronomers have long speculated that the missing baryonic mass might eventually be discovered in intergalactic space or as some large population of galaxies that are difficult to detect.

天文学家长期以来都在推测，最终可能会在星际空间或者是在难以探测的大量星系中发现丢失的重子质量。

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The chancellor is still credited with running a strong economy, while faith in Mr Blair has been weakened by Iraq's missing weapons of mass destruction.

ECONOMIST: Tony Blair and Gordon Brown are friends again. Really

Tony Blair and Alastair Campbell's legal war over the sexed-up Iraq dossier and those missing weapons of mass destruction felled both the DG and the Chairman.

BBC: The BBC has faced worse crises

The leading theory to explain the missing neutrinos was that neutrinos had a little mass, which it turns out would allow them to transform themselves as they traveled from one neutrino type to another.

NPR: Neutrinos: A Cursed Subatomic Particle?