Spitzer's infrared instruments return reams of data to Earth as the orbiting observatory gathers light from far reaches of the universe, light that is invisible to the naked eye.

斯皮策太空望远镜在沿着轨道旋转时，收集了来自广阔太空的各种光线，这些光线对于肉眼来说是不可见的，但红外设备可以观测到，观测结果形成数据被传回地球。

youdao

With its far-infrared detectors, Herschel has been able to re-visit familiar objects to provide new data.

BBC: Herschel space telescope to go blind