The shocking “proof” was revealed in a new book by journalist Leslie Kean, who wrote a New York Times number one best seller about UFOs in 2010 called UFOs: Generals, Pilots and Government Officials Go On the Record.
Her latest work Surviving Death: A Journalist Investigates Evidence for an Afterlife, followed lengthy research into the subject and that of spiritual mediums and near death experiences.
The book features 10 chapters written by experts in the fields of reincarnation, out-of-body and near death experiences, mediumship and paranormal investigation.
Ms Kean also carried out two of her own experiments with psychic mediums and witnessed “life-changing events” at a seance conducted by English medium Stewart Alexander.
She wrote: “The seances with Stewart Alexander have changed my life.
“Since I witnessed the materialisation of a human hand, touched it, and felt its life and warmth, a door was opened in me.
“I encountered something utterly incomprehensible yet physically real.”
Mediums are said to have spirit guides, long dead individuals who help them meet with others in the spirit world.
Ms Kean said she “came to know” Mr Alexander’s spirit guides by “laughing with them and asking them questions”.
She wrote of an encounter with ectoplasm.
She said she was asked during a seance ‘would you like to feel the hand of a man dead to your world for over 100 years?’
She wrote: “I watched it form again into a living hand, which moved close to my hand and touched it.
“I held that materialised hand in mine.
“It felt completely normal and human with joints and bones, and fingernails, but much warmer, than my hand and larger, with sort of stubby fingers and very soft skin. Once again it withdrew.”
The experience has left the author in no doubt spirits live on.
She added: “While exploring the evidence for an afterlife, I witnessed some unbelievable things that are not supposed to be possible in our material world.
“Yet they were unavoidably and undeniably real.
“Despite my initial doubt, I came to realise that there are still aspects of nature that are neither understood nor accepted, even though their reality has profound implications for understanding the true breadth of the human psyche and its possible continuity after death.”
The book has already become the top seller in Amazon’s unexplained mysteries section.