One of IceCube's digital optical modules
One of IceCube's digital optical modules being lowered into the ice
The IceCube base station in Antarctica
A schematic of the IceCube neutrino observatory
After two decades of planning, the world’s first kilometer-scale neutrino observatory should finally be completed by this December. Named IceCube, it will consist of an array of 5,160 optical sensors embedded within one cubic kilometer of the Antarctic ice shelf – to put the accomplishment in perspective, one of the next-largest such observatories is just 40 cubic meters in size. Its main purpose will be to try to establish, once and for all, the source of cosmic rays.
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