The Post looks back at some of the most audacious missions from the CIA archives which have eventually been revealed to the public.

Led by Professor Jonathan Johnston at the University of Surrey and Professor Alexandra Johnstone at the University of Aberdeen, the research involved a controlled experiment where participants ...

Sandia National Labs are conducting a controlled fire experiment today. Sandia Labs says black smoke may be visible across ...

Independent variable – the variable that is altered during a scientific experiment. Dependent variable – the variable being recorded or measured during a scientific investigation. Controlled ...