Add Yahoo as a preferred source to see more of our stories on Google. The fossilized tail bones of an Ichthyosaurus, around 190 million years old and weighing 800 kilograms. - Markus Scholz/picture ...

Could another advanced civilization have existed on Earth long before the societies recorded in conventional history? The episode explores both the possibility of a forgotten prehistoric human ...

The hypothesis that a globally connected, technologically advanced civilization existed during the Stone Age before being ...

The hunt for aliens goes hand in hand with the hunt for habitable planets. Astronomers are on the hunt for exoplanets with atmospheric chemicals that could be a sign of an advanced civilization. These ...

Imagine a super-advanced alien civilization that needs insane amounts of energy way beyond our puny solar panels and wind turbines to power their mega-cities, AI overlords, or whatever interstellar ...

One of the most challenging aspects of astrobiology and the Search for Extraterrestrial Intelligence (SETI) is anticipating what life and extraterrestrial civilizations will look like. Invariably, we ...

In 1950, famed astrophysicist Enrico Fermi posed a profound question during a casual lunch with colleagues: Where is everybody? In other words, if there’s an extremely high probability that advanced ...

This voice experience is generated by AI. Learn more. This voice experience is generated by AI. Learn more. One of the most fantastical claims SpaceX is making during the countdown toward a share ...

Two scientists explored the idea that there was another civilizaton before humans, which harnessed energy and wiped itself ...