Boom breaks sound barrier with American-made private supersonic jet

XB-1 hit supersonic, hypnotic speeds on Tuesday, making American aviation history. XB-1 is the first commercial aircraft to reach supersonic speeds since the British Concorde jetliner in 2003, and the first civil supersonic flight in U.S. airspace.

Earth records hottest year ever in 2024

Earth recorded its hottest year ever in 2024, surpassing the critical 1.5-degree Celsius warming threshold, a benchmark tied to devastating climate impacts.