Gravitational lensing tends to magnify distant sources and increase their apparent brightness, as rays of light become concentrated.

引力透镜往往会聚焦光束，放大远处的光源并且增加其视亮度。

So we call this effect “gravitational lensing.”

所以我们称这种效应为“引力透镜效应”。

The researchers said an observation method called gravitational lensing also helped them.

研究人员表示，一种名为引力透镜效应的观测方法也对他们有所帮助。

In gravitational lensing, there are three essential components -- the source, the lens, and the telescope.

在引力透镜中，有三个基本组成部分-光源，透镜和观测点。

In both cases, astronomers were able to see the light from the star because of an effect known as gravitational lensing.

在这两种情况下，天文学家都能看到恒星发出的光，因为一种叫做引力透镜的效应。

This  phenomenon is known as gravitational lensing.

这种现象被称为引力透镜。

Vieira said that the combined abilities of James Webb and gravitational lensing made it possible for the researchers to observe through the dust to identify the PAHs.

维埃拉说，詹姆斯·韦伯太空望远镜和引力透镜效应的结合能使研究人员有可能透过尘埃观察到多环芳香烃。

Similarly, light that passes close enough to an event horizon will be deflected in a phenomenon known as gravitational lensing.

类似地，通过足够靠近事件视界的光将在称为引力透镜的现象中发生偏转。

While gravitational lensing is one way to measure amounts of dark matter, the method is more difficult when trying to observe the material in the most distant parts of the universe.

虽然引力透镜是测量暗物质数量的一种方法，但试图观察宇宙最遥远部分的物质时，这种方法仍旧面临困难。

Finally, the incredible gravity around a  black hole leads to interesting gravitational lensing effects on the accretion disk  resulting in this familiar image.

最后，黑洞周围令人难以置信的引力导致了吸积盘上有趣的引力透镜效应，从而产生了这张熟悉的图像。