Since Putin invaded Ukraine, the short distance between Nome, Alaska, and Russia seems wider than ever.

In the icy waters of Alaska's Bristol Bay, a new study reveals how a small population of beluga whales (Delphinapterus leucas ...

Extreme humidity and triple-digit temperatures are affecting around 250 million people across the United States. Here's the science behind the heat dome that’s stifling the nation. A sunbather rests ...

With major eclipses, brilliant supermoons, and lineups of five or more planets, 2026 offers something awe-inspiring in every season. Here’s what to watch for. Solar prominences and their associated ...

It's the best time of year to score steep discounts on luxury, expedition, and family cruises across all seven continents.