This book is the result of the work of the first international congress of the ArabGU (Arabian Geosciences Union) which took place in Algiers (Algeria) in February 2016. It presents research articles and review papers on geology of the North Africa and Arabian Middle East . It provides information to the public on various fields of earth sciences and encourages further research in this field in order to attract an international audience.

This book aims at providing a brief but broad overview of biosignatures. The topics addressed range from prebiotic signatures in extraterrestrial materials to the signatures characterising extant life as well as fossilised life, biosignatures related to space, and space flight instrumentation to detect biosignatures either in situ or from orbit. The book ends with philosophical reflections on the implications of life elsewhere. In the 15 chapters written by an interdisciplinary team of experts, it provides both detailed explanations on the nature of biosignatures as well as useful case studies showing how they are used and identified in ancient rocks, for example. One case study addresses the controversial finding of traces of fossil life in a meteorite from Mars. The book will be of interest not only to astrobiologists but also to terrestrial paleontologists as well as any reader interested in the prospects of finding a second example of life on another planet.

Given the fact that there are perhaps 400 billion stars in our Galaxy alone, and perhaps 400 billion galaxies in the Universe, it stands to reason that somewhere out there, in the 14-billion-year-old cosmos, there is or once was a civilization at least as advanced as our own. The sheer enormity of the numbers almost demands that we accept the truth of this hypothesis. Why, then, have we encountered no evidence, no messages, no artifacts of these extraterrestrials? In this second, significantly revised and expanded edition of his widely popular book, Webb discusses in detail the (for now!) 75 most cogent and intriguing solutions to Fermi's famous paradox: If the numbers strongly point to the existence of extraterrestrial civilizations, why have we found no evidence of them? Reviews from the first edition: "Amidst the plethora of books that treat the possibility of extraterrestrial intelligence, this one by Webb ... is outstanding. ... Each solution is presented in a very logical, interesting, thorough manner with accompanying explanations and notes that the intelligent layperson can understand. Webb digs into the issues ... by considering a very broad set of in-depth solutions that he addresses through an interesting and challenging mode of presentation that stretches the mind. ... An excellent book for anyone who has ever asked 'Are we alone?'." (W. E. Howard III, Choice, March, 2003) "Fifty ideas are presented ... that reveal a clearly reasoned examination of what is known as 'The Fermi Paradox'. ... For anyone who enjoys a good detective story, or using their thinking faculties and stretching the imagination to the limits ... 'Where is everybody' will be enormously informative and entertaining. ... Read this book, and whatever your views are about life elsewhere in the Universe, your appreciation for how special life is here on Earth will be enhanced! A worthy addition to any personal library." (Philip Bridle, BBC Radio, March, 2003) Since gaining a BSc in physics from the University of Bristol and a PhD in theoretical physics from the University of Manchester, Stephen Webb has worked in a variety of universities in the UK. He is a regular contributor to the Yearbook of Astronomy series and has published an undergraduate textbook on distance determination in astronomy and cosmology as well as several popular science books. His interest in the Fermi paradox combines lifelong interests in both science and science fiction.

The aim of this book (and subsequent volumes issued annually) is to provide an annual astronomy review suitable for the popular science level reader. It will be published every year in September in a format suitable for an appeal to the Christmas market. The book will cover all major astronomical news on topics beyond the Solar System and place them in the context of the longer term goals that astronomers and astrophysicists around the world are aiming for. The target is to capture the excitement of modern astronomical research enabling reader to stay up-to-date with its rapid pace and development.

Discover the real science behind 2001, ET, Signs, and all your favorite fictional alien civilizations. As space telescopes continue to search for life in this unearthly Universe, the crucial questions remain unanswered. Are we awake to the revolutionary effects on human society and science that alien contact will bring? And how is it possible to imagine the unknown? The Science of Aliens tells the compelling story of how the portrayal of alien life has evolved over time. Taking examples from science, film, and fiction, this book showcases how scholars, filmmakers, and authors have devoted their energies to imagining life beyond this Earth. From Copernicus to Kubrick, The Science of Aliens is a fascinating account for anyone interested in extraterrestrials. Otherworldly topics include: What Xenomorphs from Alien and Na'vi from Avatar have in common Darwin among aliens Extraterrestrials in Einstein's sky Aliens in our space age And so much more Visualize the unknown and redefine your place in a changing cosmos with The Science of Aliens.

The 24th century: humankind has become a spacefaring civilization, colonizing the solar system and beyond. While no alien forms of life have yet been encountered in this expansion into space, colonists suddenly encounter machines of alien origin - huge robots able to reproduce themselves. Called replicators by the colonists, they seem to have but a single goal: to destroy all organic life they come in contact with.
Since the colonial governments have no means to fight this menace directly, they instead promise huge rewards to whoever destroys a replicator. As a result, the frontier attracts a new kind of adventurers, the Hunters, who work to find and destroy the replicators. Mike Edwards, a skilled young maintenance technician and robotics expert at a faraway outpost, will not only become one of them - but be the very first one to unlock the secret behind the replicators origin and mission.
The scientific and technical aspects underlying the plot - in particular space travel, robotics and self-replicating spacecraft - are introduced and discussed by the author in an extensive non-technical appendix."

Starting from Newton's times this follow-up to the author's Springer book "Our Place in the Universe - Understanding Fundamental Astronomy from Ancient Discoveries" addresses the question of "our place in the Universe" from astronomical, physical, chemical, biological, philosophical and social perspectives. Using the history of astronomy to illustrate the process of discovery, the emphasis is on the description of the process of how we learned and on the exploration of the impacts of discoveries rather than on the presentation of facts. Thus readers are informed of the influence of science on a broad scale. Unlike the traditional way of teaching science, in this book, the author begins by describing the observations and then discusses various attempts to find answers (including unsuccessful ones). The goal is to help students develop a better appreciation of the scientific process and learn from this process to tackle real-life problems.

Thoroughly investigated by a former Army officer and taken from his review of hundreds of historical and government documents and inperson interviews, this book chronicles more than 100 sightings, events, and discoveries of alien encounters, government conspiracy, and the influence of extraterrestrials on human events throughout history. From prehistoric UFO sightings, cave paintings, and ancient astronauts to modern sightings around the world, this book investigates claims of aliens living among us, abductions of humans to alien spacecraft, and accounts of interstellar cooperation since the UFO crash in Roswell, along with evidence of what the government knows and what it has covered up. This discussion of the government secrets, theories, and mysteries surrounding aliens is packed with thoughtprovoking stories and shocking revelations of alien involvement in the lives of Earthlings.

Seeking the truth about UFOs in America, Mark Pilkington and John Lundberg uncover a 60 year-old story stranger than any conspiracy thriller. Through the fascinating account of their quest Mark Pilkington reveals the long history of UFOria and its parallels in little known tales from the murky worlds of espionage, psychological warfare and advanced military technology. Along the way he discovers that the truth about flying saucers is stranger and more complex than either the ufologists or debunkers would have us believe. As he crossed the US meeting intelligence agents, disinformation specialists and UFO hunters Pilkington was confronted with a dizzying array of ever more outrageous claims and counter claims. As a result he began to suspect that, instead of covering up stories of crashed flying saucers, alien contacts and secret underground bases, the US intelligence agencies had actually been promoting them all along. Meanwhile he has to deal with his own uncertainties, the suspicions of the UFO community and a partner who is starting to believe that conspiracy theorists might be right after all. With a fresh, funny and objective approach, Pilkington is the ideal guide to steer us through these strange territories, where nothing is quite as it seems and reality is just a matter of managing perceptions.

Chris Rutkowskis name is synonymous with UFO research the world over, and this book captures his most breathtaking research, along with new and exciting accounts, that will have you questioning "are we alone in the universe?"

The Big Book of UFOs is a compendium of his best and most disturbing UFO stories for enthusiastic fans everywhere, with startling evidence to make even the biggest skeptics believe. The renowned ufologist takes us on a tour of UFOs in Canada and around the world. He has studied UFOs, aliens, abductions, and even encounters reported by kids.

Rutkowski offers many famous reports, such as the "ghost airplanes" seen over Canadas Parliament in 1915, but also includes many exciting new cases, secret files, and statistics, as well as lots of tidbits and trivia to keep everyone excited.

Convincing evidence that the Egyptian, Sumerian, and Dogon civilizations were founded by aliens from the Sirius star system who are now ready to return

- Updated with 140 pages of new scientific evidence that solidifies the hypothesis that the KGB, CIA, and NASA attempted to suppress
- An awe-inspiring work of research that calls for a profound reappraisal of our role in the universe
- Over 10,000 copies sold in its first two months of release in Britain
Publication of "The Sirius Mystery" in 1976 set the world abuzz with talk of an extraterrestrial origin to human civilization and triggered a 15-year persecution campaign against Robert Temple by the KGB, CIA, NASA, and other government agencies. Undaunted, however, Temple is back, with 140 pages of new scientific evidence that makes his hypothesis more compelling than ever.
Many authors have speculated on the subject of extraterrestrial contact, but never before has such detailed evidence been presented. Temple applies his in-depth knowledge of ancient history, mythology, Pythagorean physics, chaos theory, and Greek, to a close examination of the measurements of the Great Pyramid of Giza, which was built to align directly with the star Sirius. He concludes that the alien civilization of Sirius and our own civilization are part of the same harmonic system, and are destined to function and resonate together. His findings warrant a profound reappraisal of our role in the universe.

Although many adults believe they have had encounters with strange creatures from alien spaceships, not everyone has actually reported their experiences to official investigators. But if you're a young person it's even less likely that people will believe you and more likely that your story will never be officially recorded. After all, who would believe a kid?

I Saw It Too is the first collection of stories told by children, documenting what they saw and when they saw it. These accounts are real cases of UFOs they've seen or alien creatures they've encountered that were reported to government or military officials, UFO investigators, and journalists.

Inside you will find eighteen of these strange, fascinating, and believable tales recounted by young people from around the world with story illustrations by Stacey Archer with Lonigan Gilbert. The truth is really out there, and renowned ufologist Chris Rutkowski has tracked it down

UF0s are a truly global phenomenon. Although many of the best-known cases have taken place in North America, amazing stories of witnesses encounters with strange disc-shaped objects (and their occupants) have come from every corner of the globe.

From a floating platform watched by dozens in Indonesia, to a Saturn-shaped object that flew over a ship off the coast of Brazil, to a landing Down Under, UFOs have been baffling witnesses and making headlines around the world.

What are some of the most interesting cases? Which ones seem most mysterious? And what can one of the worlds most active UFO researchers and investigators tell us about UFOs, from A to Z? Join Chris Rutkowski as he takes us on a tour of A World of UFOs.

This is the new, revised edition of the farout book of photographs of the moon, Mars and other planets that made NASA wince and reluctantly offer several public denials.

With hundreds of photographs and illustrations, Extraterrestrial Archaeology takes the reader to the strange and fascinating worlds of the moon, Mars, Mercury, Venus, Saturn and other planets for a look at the alien structures that appear there. Using official NASA and Soviet photos, as well as other photos taken via telescope, this book seeks to prove that many of the planets (and moons) of our solar system are in some way inhabited by intelligent life. There are also many blowups of NASA photos and detailed diagrams of structures. Extraterrestrial Archaeology includes:
-- NASA photos of pyramids and domed cities on the moon
-- Pyramids and giant statues on Mars
-- Hollow moons of Mars and other planets
-- Robot mining vehicles that move about the moon processing valuable metals
-- NASA and Russian photos of space bases on Mars and its moons
-- A British scientist who discovered a tunnel on the moon, and other "bottomless craters"
-- Early claims of trips to the moon and Mars
-- Structural anomalies on Venus, Saturn, Jupiter, Mercury, Uranus and Neptune
-- NASA, the moon and antigravity
-- NASA's confirmation of water on the moon
-- New photos from Russia and the latest face-on-Mars pictures

Extraterrestrial Archaeology is highly illustrated with photos, diagrams and maps!

Now in a German language edition, this continues to be the only book widely available on anomalistic structures with UFOs on the moon.

The first, comprehensive military history of armed confrontations between humans and extraterrestrials Although close encounters with alien space craft are reported as far back as the reign of Pharaoh Thutmosis III in Egypt, it wasn't until the 20th century that UFO sightings and extraterrestrial encounters were truly documented, due to advances in technology and record-keeping as well as the vast increase in incidents, particularly with military forces. Revealing his extensive research and the verifiable evidence he's discovered, Frank Joseph presents a comprehensive military history of armed confrontations between humans and extraterrestrials in the 20th and 21st centuries. He explains how, with the development of atomic bombs and ballistic missiles, the frequency of extraterrestrial intervention in human affairs increased dramatically. He documents incidents both famous and little known, including the explosive demolition of U.S. munitions factories in 1916 by unearthly aerial vehicles, the Red Baron's dogfight with a UFO during World War I, "foo fighter" sightings and battles with Allied and Axis combatants during World War II, and eye-witness reports from encounters during the Korean War, the Vietnam War, the Gulf War in Iraq, and the ongoing hostilities in the Middle East. The author also examines recent, 21st-century examples of alien interdiction in Earthly affairs, such as the meltdown of the Fukushima Daiichi nuclear plant in Japan and the fiery abort of Elon Musk's Falcon 9 missile launch, both events accompanied by UFOs. Offering complete disclosure of the multitude of ET events over the past century, Frank Joseph gives us the first true reference book in the field of alien military encounters.

New Hampshire couple Betty and Barney Hill provided Americans with what is essentially the original alien abduction story. Since their story became public in the early 1960s, many thousands of Americans have likewise come forward with similar stories of traumatic experiences. Sometimes the abductee has little conscious recollection of these events, but through nightmares, dreams, flashbacks and hypnosis they eventually learn more. Sometimes the participants are bewildered. To get a better understanding of the opposing viewpoints of skeptic and believer, the Betty and Barney Hill case is used to examine the wider context of such encounters, their historical origins, media influences and the latest extraterrestrial, psychological, paranormal, conspiracy and sociological theories that surround them.