There are numerous daytime and night time photographs and videotapes of clearly non-human spacecraft from all over the world; these films and videotapes have been evaluated and deemed authentic by competent experts in optical physics and related fields.

The evidence that at least one extraterrestrial civilization has visited Earth is extensive both in scope and detail. In its totality it comprises a body of evidence which at the very least supports the general assessment that extraterrestrial life has been detected, and that a vigorous program of research and serious diplomatic initiatives is warranted.

There are more than 4000 landing trace cases from around the world.

It was one to three football fields in length. It was massive, about 300 feet above the ground. It had three lights on the points of its triangle and a large red light beneath.

Back in the early 1960s, when I was eight or nine. Some neighborhood boys and I saw a disc-shaped, windowless object that hovered, silent, then simply vanished. My parents said, "That's very nice" and ignored it, but I knew what I'd seen, and it was life-changing.

There are numerous daytime and night time photographs and videotapes of clearly non-human spacecraft from all over the world; these films and videotapes have been evaluated and deemed authentic by competent experts in optical physics and related fields.

It's been by turns frustrating and fascinating and wonderful beyond imagination. If what I suspect is true, it's one of the most important milestones in human history to acknowledge that we are not alone in the universe.