Millions of Brazilians were jolted awake by a sudden 'alien invasion' phone alert at around 1:30am on 19 and 20 June, after emergency systems in cities including Belo Horizonte and Rio de Janeiro ...

A hacker who breached Brazil's national emergency alert system and pushed fake 'alien attack' warnings to millions of phones overnight has handed cybersecurity experts a working demonstration of a ...

An international research team led by the University of Vienna has produced, for the first time, high-resolution global maps of invasion risk for thousands of alien plant species under current ...