There are five clues an afterlife really does , in fact, exist, according to a astrophysicist. Astrophysicist and Christian author Dr Hugh Ross, has shared his five insights that he claims shows proof of an afterlife. His definition of life after death is when the soul leaves the body and goes to another plane of existence. "I see five or six lines of evidence for the existence of a transcendent realm beyond," he said. "In other words, the biblical 'heaven,' God's spiritual realm of existence."