So the dark half of the rings is 60 timesbrighter, and the bright half 20 times brighter, than they would haveappeared if the entire system, planet included, could have beencaptured in a single image.

所以要在这一幅包括行星在内的整个系统的图像中使土星环显现出来，土星环黑暗的一半被增亮了60倍，而明亮的一半被增亮了20倍。

youdao

This baby Ewok will grow into a powerful warrior, helping to defend its planet from the Dark Side.

这个伊渥克婴儿会成长成为一个强大的战士，他会帮助你保卫自己的星球不受黑暗势力的入侵。

youdao

Dark matter and dark energy, the sources of many current open questions in astrophysics, will figure in many space-based stories and some planet-based ones.

暗物质和暗能量，当前天体物理学中许多未解之谜的源头，将出现在很多发生在太空和外星的故事中。

youdao

When they used the telescope to create images of the planet, they found an area that appeared dark in light the human eye could see.

VOA: special.2009.08.25

Since Kepler finds planets by measuring the tiny dips in a star's brightness when a dark planet moves across the face of that star, less accurate photometry means Earth-like planets will be too hard to find.

CNN: Kepler or not, we'll find life in space

There was even speculation about a dark material on the tiny planet that could conceivably contain the same organic molecules being hunted on Mars, the carbon-based building blocks that are essential to all life.

BBC: New age of exploration in the hunt for extreme life

The Great Dark Spot seen by Voyager 2, a probe which investigated the planet in 1989, disappeared within a year.

ECONOMIST: Comparative meteorology