I certianly hope that humans aren't the only living thing in the universe!! What makes me believe there have been alien visitors are the ancient drawings which depict what are described as "Aliens" and their "Craft"! Look at the Nazca lines or the Pyramids..these things are thousands of years old and could never be duplicated with modern technology!I have spent many hours in flight and outside at sea..and I personally have seen unexplainable objects in the night skys!
Since the "begining" until the mid to late 1800s the most advanced technology was the cotton gin,simple flight or steam engine.Take the next 120 years(1940's)...we gained the Automobile,radio,telephone,radar. In 20(1960's) or so years we have men in space on the moon...20 more years we have super computers,deep space missions, extraodinary medical breakthroughs and lots of NUCLEAR WEAPONS! up to now...we are able to do more than most science fiction books which were avaliable to us all as kids ever imagined!
After we detonated the "Bomb" in the 1940's we have had more and more growth in technology in 60+years than the 100,000 years of mankind preceeding??? Where have we gained this knowledge??It amazes me that shortly after the testing of the bombs when the crash at Roswell,NM occured as did the large amounts of UFO sightings across the globe!
There are Biblical scriptures which give thought to the rise of technology relating it to the "Time of the End".. As well as descriptive records of flying objects which are very similar to todays accounts of UFO's..As far as Biblical scripture and "Aliens" there are many different "beings" told about in the Bible other than Humans ...they are listed! Arch Angels,Angels,Seraphim,Cherubim,Zoa. So if you guys are basing the facts that "we" are all alone from the Bible...read it again!WE ARE NOT ALONE in this Universe weather you believe in the scientific or Biblical!