Solar flares can affect us on Earth, and radiation from this flare caused a shortwave radio blackout. A map released by the National Oceanic and Atmospheric Administration (NOAA) shows the entirety of ...

The map—presented as clear evidence of the Nazis' hostile aspirations in what was (under the century old Monroe doctrine) still considered "America’s backyard"—had its intended effect.

Skies will be clear for better viewing, especially in the darker regions away from city lights. Even if not directly overhead, the aurora can be seen from up to 621.371 miles (1,000 kilometers ...

Scientists have identified a new pod of ancient hunter-gatherers who lived near the land bridge between North America and South America about 6,000 years ago.Researchers are still charting how ...