In celebration of Earth Month and ahead of Earth Day, National Geographic has unveiled the ourHOME Sweepstakes, giving one winner the trip of a lifetime: An expedition to Antarctica for two.

Hand-carved arrowheads and jagged spears made ... with the vast majority coming from Bear Gulch in Idaho and Obsidian Cliff in Wyoming's Yellowstone National Park. Other sources include the ...

Join us in the celebration with a chance to win a National Geographic-Lindblad Expeditions cruise to Antarctica for two! Ever dreamt of gliding on a Zodiac around enormous icebergs of the ...

In celebration of Earth Month, for a limited time get a bonus issue with your National Geographic subscription! From breathtaking photography to in-depth articles, explore nature, science ...

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Rongowhakaata Iwi Trust has secured Tūranganui-a-Kiwa a place in a global climate adaptation initiative funded by the National Geographic Society. Photos / Rongowhakaata Iwi Trust/ NZ Herald ...

Some of the obsidian artifacts, including arrowheads and spear tips, traveled nearly 750 miles from their source, according to Allan. An obsidian spear head from the Red Deer area. Photo by Todd ...