The US has had a military presence in Greenland since World War II. But an abandoned underground military site poses a major environmental threat as the planet warms. Researchers found thousands of ...

President Donald Trump has spent his first weeks in office calling for the U.S. to buy Greenland while refusing to rule out the possibility of military force — even as officials declare the country ...

President Trump says he wants control of Greenland because it's crucial for America's national security. It's also crucial for science. An ice core - a cylinder of ice drilled out of a glacier decades ...

As NASA scientist Chad Greene flew over northern Greenland with a team of engineers in April, they never expected their radar to find something manmade buried deep within the ice. Greene and his team ...

While flying over Greenland and using advanced radar technology to map the continent's ice, NASA scientists discovered something incredible, an abandoned Cold-War-era U.S. military base 100 feet under ...