Many people believe that we are not alone in the universe but if that’s the case then where are all the aliens ?
(Some scientists think there could be thousands of planets with intelligent life)
Frank Drake has been pondering the possibility of extraterrestrial life for decades. “It’s probably the most important question there is,” he said. “What does it mean to be a human being? What is our future? Are there other creatures like us? What have they become? What can evolution produce? How far can it go?”
The question of whether or not we are alone in the galaxy is one that has fascinated everyone from mathematicians to conspiracy theorists. But, if extra-terrestrial life forms are abundant in the Universe – as some people believe – why have they not been in contact? Go to Article>>
Source: BBC News

It is pure and simple, they are far more advanced than we are thru the entire spectrum be it knowledge wise to technology etc and so forth. We are not a threat to them at current time but being closely watched as we continue to advance ourselves over time and probably will not be even close to them for many more centuries yet to come. Until we get very close to their kind of capabilities only then will they encounter us and perceive us to be somewhat of a threat to them and maybe perhaps allow us to link up with them someway and somehow and talk about it over a steak dinner!!!!!!! heheheheheheeee.
The real question and the biggest mystery now is this one> Why have they not attacked us yet or even tried to take over our planet knowing they have the incredible capability to do so at will without having any hesitation???? So far they are allowing us to see them at various different places on this planet, they are scanning us all over the planet, making different formations and signs in the sky, and even following our slow jumbos that fly and perhaps maybe landing at remote areas that none of us know about etc. What is keeping them from doing it?????
My guess is >>>> These aliens are the ones that created us from the beginning of time as far as we can go back science wise based on fossil discoveries. This is the only logical explanation of why they have not done anything to us now and in the past. They really want to see how their creation is developing and forming over time and how we are using our intelligence as well. We also know that aliens can easily transform themselves to look like us and stand right next to us and you not know it. So figure how a person of over 2 thousand years ago was able to control the weather, walk on water, cure those instantly that were so sick and dying and even were blind and cannot see etc., and even raise up a person from the dead and this same person was also able to come back alive after being literally killed. Only a alien of superior intelligence and superior capability can do this which NO HUMAN can do even today. I believe there are two kinds of aliens. One is the good side and the other is the bad side and such has been described and written.
If you recall just tapping into some religion quotes, from various sources, it did say the evil one resides among us and is with us on this planet. Quote-unquote. So figure this one out and ask why such statement was recorded and saved for over 2 thousand years. What is so interesting if I recall correctly there is no actual description of what these so called angels look like – not even a drawing.
I believe the Earth is an object of great interest to extraterrestrial biological entities in the fact that our Solar System is relatively young at 4.4 billion years old, compared to the universe which is closer to 13-14 billion years old. They have formed in older solar systems on older planets and seem to be curious about us here in the fact that we are relatively low on the overall totem-pole of evolution. Think about this, you’re an alien being from another world, or what you would call home, and your civilization has just discovered a planet that is almost 10 billion years younger than yours. Wouldn’t that peak your interest in your own origins? Wouldn’t you want to go there and check it out? Maybe they come here to study young planets and help gauge the early stages of evolution. Maybe they know already but are just curious.
Maybe it awes them that there exists a planet with humans that have no concept of intergalactic travel and they merely marvel at our ignorance. Maybe they’re jealous that we have not been tainted by the politics of such technologies to travel beyond our solar system, and they’ve been bored with these technologies for centuries already. Or maybe they’ve never came here at all and people are just seeing sh!t in the skies!!! Not likely, but, we’ll continue. I believe there exists an intergalactic race of humble beings that simply want to categorize all of the life possible to find in the universe. Like Star Trek, except we’re the indigenous peoples of another world and they are Captain Kirk and Spock. Think about this. If aliens were advanced in technology millions of years ago and wanted to index the entire galaxy, they would STILL be collecting new evidence EVERYDAY.. There is simply too much out there to catalogue. Simply put, even if they’ve been doing this for millions of years, they would still have to do it for millions of more years to come to even grasp a fraction of a percent of what’s out there. Indexing life forms and such. Right?? Extraordinary.