"In 1961, Betty and Barney Hill claimed to have experienced a bizarre night that included extraterrestrials, flying saucers, and a few lost hours during which they could recall very little until they underwent hypnosis. Their mysterious story was just the first of many that have been told by people who have since come forward with their own similar experiences. Although there are thousands of people who claim to have experienced alien abduction, much...

"Is there life elsewhere in the Solar System? How many civilizations could exist in the galaxy? Will we ever meet them? Since we were little, we ve been fascinated by the stars and planets. We immediately wonder if there could be creatures like you and me living on its surfaces, wondering themselves if in other places in the galaxy there are beings like them... The avalanche of questions is unstoppable: human beings are curious by nature. If you've...