Secretary of State Marco Rubio insisted that President Donald Trump’s desire to acquire the Danish territory of Greenland is “not a joke.” At least one person, Russian President Vladimir Putin, is ...

Scientists discovered thousands of ice quakes beneath Greenland’s Ice Sheet, changing our understanding of ice movements and ...

Blue Ghost will spend the next 16 days in lunar orbit, if all goes to plan. It will conduct additional engine burns to circularize its path around Earth's nearest neighbor, then attempt a landing in ...

One of the key factors contributing to the decline in Chinese international students in the US was the government's "China ...

Firefly Aerospace 's moon-bound spacecraft has provided the closest thing to a reflecting pool in space, showing Earth as an ...