On August 13, 1521, the capital city of Tenochtitlan fell after a two-month siege — a victory that marked the end of an empire. But five hundred years later, researchers are giving stories surrounding the events another look. ...read more
With the right conditions and a bit of luck, some of the most inhospitable worlds in the universe could still be habitable. ...read more
New research suggests a surprising connection between the eyes and the mind. ...read more
A new heat sensor offers an option for incorporating thermal imaging into phones. ...read more
A remarkable ancient technology and tradition of creating suspension bridges to unite communities in the Andes is sadly fading into history. ...read more
Technically speaking, the language followed Rome to the grave. That makes its grip on life even more impressive. ...read more
Research shows that people who take time away from work are happier, less stressed and may even live longer. ...read more
Many species of non-human animals end their lives through self-destructive or accidental behaviors. But whether it’s an act of suicide is a controversial question. ...read more