Lines are growing at Russian gas stations -- and so is the frustration and uncertainty as several months of Ukrainian attacks ...

NASA is developing and testing cryocoupler devices to enable future deep-space exploration missions to refuel at orbital ...

NASA just tested a fully automated refueling coupler for spacecraft, and if it works, it could fundamentally change how deep space missions work.

For generations, aerial refueling boom operators guided aircraft by looking directly through windows at the tanker’s tail.