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.

There are several multiple-witnessed events where humans have been taken on board spacecraft.

CSETI (The Center for the Study of Extraterrestrial Intelligence) has in the past 18 months succeeded in intentionally establishing contact with extraterrestrial spacecraft, on two occasions at very close range, and with multiple witnesses present.

There are hundreds of electromagnetic cases where spacecraft have been observed by police, military personnel and civilians to affect car engines, radios and other electric devices.

There are more than 100 first- and second- hand witnesses to the retrieval of an extraterrestrial spacecraft and at least four extraterrestrial bodies from a crash which occurred in July, 1947, 75 miles northwest of Roswell, New Mexico; written and videotaped testimony from several first-hand witnesses who are respected military officers have been obtained.

Numerous US. Government documents exist which indicate that these objects are real and have been involved with observing Earth for several decades.

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