A recent Gallup Poll showed 38 percent of Americans believe that ghosts or spirits can come back and communicate with the living. (NASA) Seeking Meaning Beyond Can People Send Signals After They Die? Psychologist Claims Science Has the Answer By Amanda Onion June 18 — The first time Denise E. Esposito knew her late husband was watching over her was the night of Sept. 11 — hours after he died in the World Trade Center attacks. "I was hysterical crying, so I went outside and there must have been a million stars up there — I've never...