Pine Island Glacier, one of the fastest-shrinking glaciers in Antarctica, hastened its slide into the sea between 2017 and 2020, when one-fifth of its associated ice shelf broke off as massive ...

Russian military jets were "not seen as a threat" when they flew through international airspace not far from the border with Canada and the United States, the North American Aerospace Defense Command ...

The SPY-7 radar will enable F-110 frigates in the Spanish navy to perform critical search and detection duties.

The technology is far from operational. While similar sensors have proven reliable in detecting low-flying aircraft over shallow waters, the challenge could be far greater in the open sea.

When aircraft release chaff, it creates a cloud of tiny metal strips that reflect radar signals. This makes it hard for ...