In 2010 it ran out of the cryogenic coolant that enabled its primary mission of mapping the skies.

2010年其低温冷却剂消耗殆尽，而低温冷却剂是其绘制星云地图的必备。

About three stories high and only half completed, the magnet loomed like a monster made of giant blocks of metal and a confusing mess of cryogenic coolant pipes.

大约三层楼高， 只完成了一半，磁铁隐约可见， 就像一个由巨大的金属块和一团乱七八糟的低温冷却剂管道组成的怪物。