Ufology

What counts is not what sounds plausible, not what we would like to believe, not what one or two witnesses claim, but only what is supported by hard evidence rigorously and skeptically examined. Extraordinary claims require extraordinary evidence. Ufology is the "study" of UFOs (Unidentified Flying Objects). This mostly consists of people saying "wouldn't it be cool if they were alien spacecraft" and as such ufology also includes looking at the supposed encounters and abductions with extraterrestrials that go with them. Ufologists are much like paranormal researchers—indeed, UFOs are often included in paranormal "documentaries", and can be considered a sub-class of that &mdash; and they aren't too bothered by the fact they cannot really prove or disprove their assertions. Ironically, as Isaac Asimov pointed out, if people insist on identifying UFOs as spacecraft piloted by alien beings, then they aren't unidentified anymore.

Government cover-ups, etc.
Most Ufologists spend their time pushing conspiracy theories regarding government cover-ups.

Stories about alleged government cover-ups of evidence for aliens are inherently unprovable and unfalsifiable, but 1 of 2 things is definitely true: Many of the vocal ufologists, like Erich von Däniken, make up fake histories and rumors of covert alien invasions.
 * 1) If real aliens exist and want to communicate with Earthlings they can easily do this, by, for example, landing something in any crowded part of any big city and repeating as necessary. Aliens could also do things near major broadcasting studios.
 * 2) If real aliens exist and don't want Earthlings to find out about them, with their probable superior technology they could easily hide from us.

Calling a website "Rays of Truth" doesn't prevent it from being a hoax.

Alien protection
It has been alleged by at least one disreputable source that aliens are protecting the Earth from bombardment from asteroids by using fermions or The lack of bombardment on the Earth's surface isn't hard to explain since many lunar features date back to the Pre-Cambrian and similar features on Earth have eroded or been destroyed through geological activity.