A hoax 'alien invasion' alert in Brazil caused panic and amusement, revealing vulnerabilities in emergency systems.

The first unmistakable signal from another intelligence would rank alongside fire and writing in the story of our species, yet a growing group of researchers warns that such a moment might arrive not ...

A retired US Navy rear admiral has claimed that 'higher-order non-human intelligence' effectively rules Earth's oceans, telling a US magazine that physics-defying UFO encounters convinced him alien ...