President Trump suggested Monday that first lady Melania may have helped convince him to ramp up military aid to Ukraine.

US president Donald Trump’s special envoy to Ukraine and Russia has arrived in Kyiv, a senior Ukrainian official said, as anticipation grew over possible changes in the Trump administration’s policies ...

The tracker application helps officials monitor rare and endangered species populations and identifies problem areas in New ...

With the use of autonomous recording units, or ARUs, scientists can listen to bird frequencies to understand their behaviors.

New manufacturing site for RQ-35 intelligence, surveillance, and reconnaissance platform will respond to U.S. demand ...