Is it possible some UAP are extraterrestrial craft? Is it reasonable to think there is intelligent alien life visiting earth?

Scientists still debate whether the universe is infinite, but at a minimum, our visible universe contains trillions of galaxies, each with hundreds of billions of planets and moons. As best we can tell, the same laws of physics apply everywhere, and the heavy organic molecules that form the basic building blocks of life are abundant. In short, from the nearest solar systems to the most distant edges of space and time, we are surrounded by endless opportunities for life. Amidst these endless opportunities, intelligent extraterrestrial life is a near mathematical certainty. But what about the prospects for intelligent life to evolve in Earth’s galactic neighborhood? Although estimates vary considerably, many indicate we are probably not alone in the Milky Way.

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