What if an alien civilization did not just exist somewhere in the universe, but actually reached Earth in the distant past? This video explored the ancient alien theory through the lens of the Fermi ...

If humanity ever makes contact with an intelligent extraterrestrial civilization, we will have no shortage of questions.

The universe is vast, ancient, and mostly silent. For decades, scientists have pointed their telescopes toward distant stars, searching for signs of intelligent life. We scan the cosmos for radio ...

Searching for extraterrestrial intelligence has so far primarily meant focusing on one particular type of signal—and that signal has normally been based on our own current cutting-edge technology. But ...

ourselves to the Milky Way galaxy, which is the galaxy that contains the solar system, it is said that there are 40 billion planets located in the habitable zone where life is likely to be born. Given ...