Intelligent machines could pose a threat in the future.
Scientists have warned that world governments are not doing enough to prepare for disaster scenarios.
In a new report entitled 'Global Catastrophic Risks',
Geologists recently discovered massive canyons and valleys hidden beneath the glaciers of West Antarctica. The largest, the Ellsworth Trough, plunges 2,000 meters (6,561 feet) below sea level.
The trough’s valley is