I did not know that yesterday!

Maybe Americans are more in tune with the cosmos. Perhaps aliens want to chat about "American Idol" with real Americans. Whatever the reason, this is a hard question to crack because (attention, conspiracy theorists!) there isn't an official site for reporting UFOs.

The National UFO Reporting Center lists thousands of "close encounters" submitted by users. According to its database, the United States has far and away the most reported UFO sightings. In fact, California alone has reported more than China, England, India, and Brazil combined.

But this doesn't necessarily mean Americans see UFOs more than other people. It just means more Americans report seeing UFOs to this particular site. The Center for UFO Studies explains, "No one is sure why the number of UFO reports varies from country to country, but cultural, religious, and political factors are probably involved." In other words, seeing a UFO in the United States might be kind of cool. In other countries, that may not be the case.

The truth is, UFOs have been (allegedly) seen just about everywhere -- from the hills of Switzerland to the coast of Australia. Should you ever spot one, the Center for UFO Studies advises you get witnesses, take pictures, and write down the details. Oh, and don't forget to report it.

Source: ask.yahoo.com