Remote viewing (RV) is the practice of seeking impressions about a distant or unseen target using subjective means, in particular, extrasensory perception (ESP) or "sensing with mind". There is no credible scientific evidence that remote viewing works, and the topic of remote viewing is regarded as pseudoscience.
Typically a remote viewer is expected to give information about an object, event, person or location that is hidden from physical view and separated at some distance. The term was coined in the 1970s by physicists Russell Targ and Harold Puthoff, parapsychology researchers at Stanford Research Institute (SRI), to distinguish it from the closely related concept of clairvoyance.
Remote viewing was popularized in the 1990s upon the declassification of certain documents related to the Stargate Project, a $20 million research program that had started in 1975 and was sponsored by the U.S. government, in an attempt to determine any potential military application of psychic phenomena. The program was terminated in 1995 after it failed to produce any useful intelligence information.
More about how the U.S. Military was convinced enough to start their own program...
And it actually has been researched from a scientific standpoint, but traditional science continues to disregard the possibility as it does with most "paranormal" phenomena. It remains a controversy...