Gravitational effect is an important content in astrophysics and astronomy.

引力效应是天体物理学和天文学中非常重要的一个内容。

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Dark matter gives out no light and is detectable only because of its gravitational effect on visible matter.

暗物质不发光，它之所以能被发现，只是因为它对可见物质产生引力作用。

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Genesis hypotheses include a galaxy collision billions of years ago and the gravitational effect of a central bar that has since vanished.

对于这个星系起源有几种假设，其中包括数十亿年前的一次星系撞击以及重力对中间消失地带的影响。

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Such disturbance has traditionally been ascribed to the combined gravitational effect of all the stars of the earth's home galaxy, the Milky Way.

ECONOMIST: X marks the spot

Marcy and a team that includes Paul Butler of the Anglo-Australian Observatory are using the telescope to scan more than 400 stars for the characteristic "wobble" caused by the gravitational effect of planets on stars.

CNN: Astronomers spy new neighbors outside solar system

It could also cast light on the mystery of dark matter, a substance that pervades the universe in vastly larger quantities than familiar, visible matter, but whose existence can be inferred only by watching its gravitational effect on visible matter.

ECONOMIST: Particle accelerators