SETI's Bill Diamond is not particularly convinced that we have ever been visited by members of an alien civilization.
If the universe is teeming with intelligent alien civilizations, why have we still not been contacted by them ?
Richard van Oort takes a look at intelligence and its role in the existential threats that our civilization currently faces.
We assume that aliens would be peaceful, but what if we contacted a civilization that wanted to colonize Earth ?
Professor Nello Cristianini investigates how exactly artificial intelligence might bring about the doom of civilization.
Researchers uncovered the enormous, previously unknown civilization by conducting LiDAR surveys of the region.
A new paper has put forward a new theory to explain why we have yet to hear from any extraterrestrial civilizations.
If the dinosaurs hadn't died out, would they have gone on to develop into an intelligent civilization ?
A new study has attempted to estimate how many intelligent alien civilizations pose a threat.
Two researchers have come up with a possible answer as to why we have yet to encounter intelligent aliens.
Archaeologists have been learning much about the Nubian civilization that once flourished in ancient Sudan.
Beneath Mount Wingen in New South Wales lies a fiery inferno that predates modern civilization.
Scientists have determined what caused the Liangzhu civilization to collapse around 4,300 years ago.
A 1972 MIT report predicted that modern civilization would collapse by the middle of the 21st Century.
What if it were possible to hide from a hostile alien civilization by 'cloaking' the entire planet ?
A new study has suggested that most alien civilizations may have already destroyed themselves.
Two theoretical physicists believe that there is a 90% chance that civilization will collapse within 40 years.
Scientists argue that if a civilization is advanced enough to communicate with us, it can also destroy itself.
Astronomers are gearing up to search the cosmos for signs of technologically advanced alien civilizations.
A new study has sought to calculate how many intelligent extraterrestrial civilizations might exist in our galaxy.