"Our findings suggest that radar signals – produced unintentionally by any planet with advanced technology and complex aviation systems – could act as a universal sign of intelligent life." So, we're ...

"Our work supports both the scientific quest to answer the question 'Are we alone?' and practical efforts to manage the influence of technology on our world and beyond." We may already be broadcasting ...

Radar systems used by civilian airports and military operations may be unintentionally revealing our planet's existence to potential "extraterrestrial observers." This is the conclusion of a study ...

Chinese scientists claim to have developed a technology to capture and read the complex radar signatures of foreign militaries using only basic tools. The team's research was a contemporary example of ...