Nome, population 3,700, is accessible only by plane outside a few months when boats can pass through. But it will be the home ...

The aurora could be visible across Canada and much of the northern U.S. following a major disturbance in the Earth’s magnetic ...

The president posted an edited image showing the U.S. flag over Canada, Greenland and Venezuela in meeting with European leaders.

After a century of defending other countries against foreign aggression, the United States is now positioned as an imperial ...

The CME was launched during a powerful X-class solar flare on Jan. 18 and raced toward Earth at speeds of 620–870 miles per ...