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 ...

President Donald Trump appears to have finally realized that his Russian counterpart Vladimir Putin, famed for rigging elections and knocking off opponents, cannot be trusted. “Putin really surprised ...

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 ...