Authorities believe everyone on board a passenger plane and a US Army helicopter that collided in mid-air before crashing into a river in Washington DC on Wednesday have been killed. An American ...

TCAS alerts pilots about a possible collision and issues a resolution advisory. (Photo: Pexels) Mid-air collisions of aircraft should have been a thing of the past with the technology that exists in ...

Researchers warn commercial airplane systems can be spoofed impacting flight safety of nearby aircraft. The aircraft safety system known as the Traffic Alert and Collision Avoidance System (TCAS) can ...

Add Yahoo as a preferred source to see more of our stories on Google. What 'rush hour' looks like in New York on the TCAS system. (Alamy) (aroundtheworld.photography) Authorities believe everyone on ...