RE: You don't believe in aliens?
Anything that requires "belief" to accept is a matter of Faith, not science. It doesn't matter what anyone "believes" about the existence, or not, of aliens. The only question of interest is, IF they exist, could they cross the vast interstellar distances to visit us?
It has been shown that the laws of Physics are the same everywhere in the observable universe. Since we've been transmitting radio signals for only the last 110 years, only those civilizations closer than that, if they exist and their technology is advanced enough, could hear us and know we are here. Since travel by a macro object faster than the speed of light is not physically possible, it would take hundreds to thousands of years for an alien spacecraft to travel the tens to hundreds of light years to arrive here. The possibility that they would expend the necessary costs in time, energy and resources to fly all the way here, just to give some drunk from Arkansas a ride to Venus, is about as plausible as an F22 pilot picking up a resident of the Amazon jungle and giving them a ride to Hollywood.
The USA is (was?) the most wealthy and scientifically advanced nation on this planet, yet we could not muster up enough support for either a permanent Moon base or a mission to Mars. In fact, we now lack a significant presence in space or the ability to get there regularly. Our astronauts have to hitch rides aboard Russian rockets in steel balls that don't even come close to the sophistication or ability of our Apollo capsules. The Chinese will have bases on the Moon before we can break our attention away from video games, reality TV, drugs or porn long enough to wake up and realize we've become a 2nd class nation.
