But it's the nuclear reactor that lets these impressive metal tubes stay at sea between 15 and 20 years before they need to return to port to refuel. The submarines in the U.S. Navy's bigger-than ...

on March 29 at Shanghai's Yangshan port. [Photo provided to chinadaily.com.cn] A simultaneous ship-to-ship bunkering of green methanol for dual-powered container ship HMM Green, registered under a ...