The blue specks are Milky Way stars, and the bluish-white haze in the background is light from older star clusters.

图中的蓝色斑点是银河系的恒星，背景中的蓝白色暮霭是来自更古老的恒星星团的光。

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Follow-up observations by Hubble Space Telescope in 2005 separated the light of the slightly offset foreground star from the background star.

由哈勃空间望远镜担任的后续观测在2005年分离出了发自背景恒星、经过前方恒星时略有偏移的光线。

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If a large object passes in front of a more distant background star, it may act as a lens, bending and distorting the light of that star so that it may appear to brighten significantly.

如果一个体积足够大的星体从一个距离很远的恒星前面经过，那么会产生透镜效果，使那个恒星的光线产生弯曲或变形，这样就能很清楚的看到这个星体。

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Astronomers are able to detect planets orbiting the lens star if the light from the background star is warped by one or more planets.

BBC: Tiniest extrasolar planet found

The technique employed to find the new planet uses the gravitational field of a star like a lens - magnifying the light from a distant background star.

BBC: Tiniest extrasolar planet found