UFOs and the Law of Probability

OK, I've always been a skeptic about many things that others find it so easy to believe in, hence my agnostic tendencies when it comes to belief in a grand creator for the earth and human race.  I usually need to see some empirical evidence before I just buy into something.  But I'm also more likely to put faith in the law of probability, even in the absence of hard evidence, which is why I've always believed that we could not possibly be the only life forms living in the universe.  Considering the sheer numbers of stars and orbiting planets, the probability of there being a large number of star/planet combinations similar to our own in terms of size, mass, distance between them, and thus, ability to harbor life, is rather large.  So what does probability say about the type of life forms that might reside on distant planets?  I'd say that the odds are good that while some may be home only to primitive microscopic lifeforms, others surely harbor races at least as developed as we are, and likely there are at least a few that have been around much longer and are more advanced.  So, while our scientists at NASA and in the private sector theorize and experiment with ways to move humans through space, and remind us that the technology currently does not exist that would allow beings to move through space fast enough to travel between distant planets, I wonder if there are races that, being so advanced, have solved that problem and have perhaps found their way to our little planet.  While the President hasn't held a news conference to introduce the world to the aliens that have come to bring us good will and their advanced technology in order to save us from ourselves, there are an endless number of "UFO" sightings and events throughout our known history such that, under that same law of probability, suggest that there might just be something to it. 

So why am I going on about this today?  Because last night, while sitting in my back yard watching the night sky simply for pleasure of it, I witnessed what I can only describe as a UFO.  A set of dim lights, moving very rapidly across the night sky in a wedge or triangle formation, making absolutely no sound.  The small size and dimness of the lights gave the appearance that they were a group of stars or satellites moving through space as opposed to being within our atmosphere.  Then again, it could have been one very large wedge-shaped object with a set of small dim lights that was flying low, and just appeared to be objects in space because of the small size and dimness of its lights and the silent movement.  And no, I wasn't the only one to see it, because I called my wife's attention to it, and she saw it briefly as well before it disappeared in the distance.  A few minutes later, while I was inside the house briefly, she witnessed something else moving silently through the sky in the same direction that she had a hard time describing.  This one didn't have lights, and didn't necessarily appear to be a solid object, but was clearly there. 

I know that some who might read this will say "Oh boy, another UFO crazy".  And that's OK.  I'm not claiming I saw an alien spacecraft flying above my backyard.  I'm only saying that I saw an aircraft, or a group of aircraft, flying in formation at a speed faster than anything currently piloted by human pilots, while making no sound at all.  But the possibility that it could have been a craft piloted by beings from a distant planet is, well, supported by the law of probability.