Between 750 and 900 CE, the population of the Maya lowlands in Central America experienced a major demographic and political decline which, according to the scientific literature, coincided with ...

Add Yahoo as a preferred source to see more of our stories on Google. New research is warning that the most likely outcome is that human civilization is poised for collapse. "We can’t put a date on ...

What if you could time-travel a hundred years from now. How would the planet look like? Would human beings still be in the picture? Only in the past year, our civilization had to face several dreadful ...

Add Yahoo as a preferred source to see more of our stories on Google. President Trump warns a "whole civilization" could die as his deadline for Iran to strike a deal and reopen the Strait of Hormuz ...

The collapse of civilizations : 1177 BC -- Of arms and the man : the fifteenth century BC -- An (Aegean) affair to remember : the fourteenth century BC -- Fighting for gods and country : the ...

It is one of the most famous questions in science, and it was asked, as legend has it, over lunch. Enrico Fermi, the physicist who helped build the first nuclear reactor and whose name graces a unit ...