Imagine receiving an alert on your phone from a government agency at night, warning you about an alien attack, when you have barely made it onto your bed. That is what happened to thousands of ...

A hoax 'alien invasion' alert in Brazil caused panic and amusement, revealing vulnerabilities in emergency systems. Authorities are investigating the breach.

A newly discovered interstellar object, named 3I/ATLAS, is drawing intense interest from astronomers and space agencies worldwide as it barrels toward the inner solar system at over 130,000 miles per ...