Experiments to realize the new definition of the kilogram will be carried out in vacuum. NIST has developed a magnetic suspension mass comparator to disseminate the new definition to air. This paper ...

Threat For Spotty Storms Will Linger Amid Humid Air Mass: 5-Day Forecast Persistent humidity means more scattered thunderstorms are in store in the coming days.

Most of Massachusetts could see isolated severe thunderstorms Thursday night, potentially bringing damaging winds and quarter-sized hail in some areas.

Three New England firms have agreed to pay $1.37 million to resolve allegations that they submitted fake claims for payment for work on an airport runway used by the Massachusetts Air National Guard ...

The head of Qatar Airways has issued a rare “open letter” to passengers in the wake of Monday’s unprecedented airspace closure in response to Iranian missile attack on Al Udeid air base.

The “major shift,” as National Weather Service forecasters put it, is due to a cold front moving in from the north. The front brought with it a “much cooler air mass” that will bring ...