Could ancient civilizations have encountered extraterrestrial beings? This question has intrigued humanity for generations.

If the universe is so vast and filled with billions of potentially habitable planets, why haven't we encountered any signs of ...

It became known as Fermi's Paradox: if the Earth isn't special, and the Universe is so very big with so many stars, where is everybody? Los Alamos in 1944, during the Manhattan Project.

The Fermi paradox, and why we haven’t encountered aliens Why it’s so vexing that we haven’t made alien contact. Cynthia McKelvey Updated on May 26 2021 9:34 pm CDT ...

Enrico Fermi, back in the ’50s, burst out with “Where are they?” during a conversation about aliens, which is why the paradox is named for him.

Plenty of theories exist — which is how we know there's no actual answer. At least, not yet. In 1950, when Italian physicist Enrico Fermi posed that question, it became known as the Fermi paradox.

To get a bit more specific, there are some 100 billion planets in the Milky Way, and even if just a mere fraction are habitable (a modest estimate), that still means that there should be millions ...