The matter we can see makes up just 17% of matter in the Universe; the remaining 83% is "dark", meaning it does not reflect or emit detectable light.

人类可见的物质只占到整个宇宙总物质的17%，剩下的83%是所谓“暗的”，意味着它们不会释出或反射可测光。

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The light still remaining in the sky lit up her face, though the landscape was nearly dark.

那时候地上的景物都差不多昏暗了，但是天空的余光还能照出她的脸。

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To establish a secure link while remaining 100 metres underwater, submarines could transmit photons of laser light to satellites, for retransmission to base.

当潜艇地100米海底时，要建立安全的通信链路，把光子激光发射到卫星上去，再由卫星转发回基地。

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As the particles are absorbed by the crystals, they give up their remaining energy as light providing further information about their identity.

ECONOMIST: How to build a B-factory

When the result is transformed back into its original condition, the only light remaining marks the position of the target, or things that looked similar to it, in the original image.

ECONOMIST: Optical recognition

And it could shed light on remaining mysteries, such as why the crust on the far side of the Moon is thicker than that on the near side.

BBC: Nasa reveals new information about moon probes crash sites