The background galaxies show that there's a lot of matter, shown here in violet, centered on the two clusters, but it's clearly not the hot gas seen by Chandra, and is giving off no light.

背景星系显示有很多物质，这里用紫色表示，以两个星团为中心，但显然不是钱德拉观测到的热气体，它没有发出光。

The other team, led by Eros Vanzella at the National Institute for Astrophysics in Italy, used a massive galaxy cluster as a starlight-magnifying " gravitational lens" to zoom in on a tiny background galaxy from about 800 million years post-big bang.

另一个研究小组由意大利国家天体物理研究所的埃罗斯·范泽拉领导，他们利用一个巨大的星系团作为星光放大的" 引力透镜" ，来放大大爆炸后形成的、约 8 亿岁的一个微小背景星系。