President Donald Trump is expressing uncertainty that NATO would come to the U.S.’s defense if the country were attacked, ...

Houston-based Intuitive Machines, which last year became the first private-sector company to soft-land a vehicle on the moon, said that its Athena spacecraft is on track to touch down around 11:30 a.m ...

Here is a look at some US citizens who have been convicted of spying against the United States. Aldrich Ames 1962 – Aldrich Ames, son of a CIA analyst, joins the agency as a low-level documents ...

A robotic lander named Athena has made its final descent to the moon’s surface, marking the second lunar touchdown for a US ...

Unless the governor or the U.S. Supreme Court grants him a last-minute reprieve, Brad Sigmon, 67, will be the first person to ...