If you happened to be watching the radar early Thursday afternoon, you may have noticed something unusual.

DOI: 10.1017/RDC.2024.79 Railroad construction through a farm on the Danish island of Falster has revealed a 5,000-year-old Neolithic site hiding an advanced technology—a stone paved root cellar.

Summary and Key Points: The U.S. Air Force has awarded an $11.7 million contract to Armtec Countermeasures to enhance the F-22 Raptor’s radar countermeasure capabilities with the RR-196 chaff ...