Do UFOs come from the future?

UFOs unleash passions, embarrass authorities and baffle scientists. For the past eighty years, these furtive, enigmatic phenomena have regularly fuelled the news headlines, toyed with our fighter planes and disappeared without any serious contact being established. Worse still, despite hundreds of thousands of witnesses worldwide, no significant progress has been made in solving the enigma of their nature and origin.In this book, the author argues for a revolutionary and fascinating hypothesis: that of time travel. UFOs are not extraterrestrials, but our own descendants. In a way, humanity would be visited by itself. This would explain the historical permanence of their appearances since Greco-Roman antiquity, the sacred principle of their non-intervention in the unfolding of human history, the instant materialization and disappearance of their vehicles, their humanoid appearance and their warning against a possible atomic self-destruction of mankind... To develop this theory, the author reviews over 3,000 years of history of unexplained aerial phenomena, and draws on the most important scientific theories, including general relativity, quantum physics, the Big Bang and black holes.