Dark matter is believed to be part of the missingmass.
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 missingmass) could be solved in addition to creating a more formidable standard model of physics.
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.