New research suggests glacier melt driven by climate change is increasing the risk of giant waves.

After Ukraine's President Zelensky said territory had been captured using just robots and drones, what is the future of unmanned warfare?

Ukraine's president says Russia has "spurned the ceasefire" and Kyiv is deciding on further action to take.

Ukraine's president says Russia has "spurned the ceasefire" and Kyiv is deciding on further action to take.

Police search locations in 12 states, mainly in the East and South of the country in what prosecutors say is a targeted raid.

Police search locations in 12 states, mainly in the East and South of the country in what prosecutors say is a targeted raid.

The staunch Trump ally emerged victorious in one of a series of closely-watched primary contests held in the US Midwest.