A new decade-long study tracked 37 penguin colonies and found that the birds are breeding earlier. The shift marks one way ...

In subzero winds, hypothermia announces itself in small, easy-to-miss ways. Here’s what one Nat Geo Explorer does to combat it in some of the coldest places on Earth.

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 ...

For people who like traveling with like-minded people, guided tours can be the perfect way to see a new destination.