13
Researchers uncovered the enormous, previously unknown civilization by conducting LiDAR surveys of the region.
61
A new paper has put forward a new theory to explain why we have yet to hear from any extraterrestrial civilizations.
29
A new study has suggested that extraterrestrials could hitch a ride across the cosmos on rogue extrasolar worlds.
58
A new study has attempted to estimate how many intelligent alien civilizations pose a threat.
86
Two researchers have come up with a possible answer as to why we have yet to encounter intelligent aliens.
4
Beneath Mount Wingen in New South Wales lies a fiery inferno that predates modern civilization.
13
Scientists have determined what caused the Liangzhu civilization to collapse around 4,300 years ago.
37
A 1972 MIT report predicted that modern civilization would collapse by the middle of the 21st Century.
65
A new study has suggested that most alien civilizations may have already destroyed themselves.
8
According to new research, man-made materials now weigh more than the entirety of our planet's biomass.
59
Two theoretical physicists believe that there is a 90% chance that civilization will collapse within 40 years.
17
Scientists argue that if a civilization is advanced enough to communicate with us, it can also destroy itself.
0
Astronomers are gearing up to search the cosmos for signs of technologically advanced alien civilizations.
25
A new study has sought to calculate how many intelligent extraterrestrial civilizations might exist in our galaxy.
307
If the universe is teeming with intelligent alien civilizations, then why have we yet to discover any?
4
The man who envisaged that an alien race could build a 'Dyson Sphere' around its star has died aged 96.
4
The inhabitants of the pre-Columbian Native American city did disappear for a time, but then they came back.
22
A new paper has put forward the idea that an alien civilization may have been watching us for millennia.
96
A new paper from an Australian think tank has predicted that human society will collapse within 30 years.
138
Harvard astronomers have suggested that the first known interstellar visitor could be an alien probe.