These mysterious substances are called dark energy and dark matter.

这些神秘物质称为暗物质与暗能量。

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an underground science lab specializing in neutrino and dark matter physics.

这个实验室位于地下，专门研究暗物质与中微子物理。

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And dark matter: that mysterious stuff we can't see but that clearly affects ordinary matter.

而暗物质是一种我们看不到的神秘物质，却明显能对普通物质构成影响。

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They are hoping to learn more about dark matter in an effort to better understand how the universe expands and shrinks.

VOA: special.2009.07.21

Scientists also want to learn more about mysterious dark matter and energy, and whether the universe will expand forever.

VOA: standard.2009.05.14

"Essentially,The Particle Adventure is an interactive tour of the world of quarks, neutrinos,antimatter, extra dimensions,dark matter, Higgs boson, as well as accelerators and particle detectors."

VOA: standard.2010.03.05

However, he admits that there is always the chance that these experiments may find nothing at all - and dark matter may not be in the form of WIMPs.

BBC: Dark Matter: Experiment to shed light on dark particles

Both theory and previous observations suggest there is more dark energy than dark matter, and more dark matter than normal matter.

ECONOMIST: Astronomy

But for the other half it will be moving with this tide and less dark matter will hit.

BBC: Dark Matter: Experiment to shed light on dark particles