A new 3-D model of a portable sundial found near Pompeii is helping researchers understand how to operate the "pork clock." ...

Comet C/2025 A6 (Lemmon) is this year’s brightest comet visible from Earth—an icy relic from the solar system’s origins that ...

Scientists say that the fires ravaging the western United States are burning differently these days. Documenting the ...

Maynard Owen Williams was National Geographic's first foreign correspondent, and in 1923 he was on hand for an event the ...

Tackling the John Muir Trail at night with only stars and moon to light the path, a veteran hiker experiences the popular 200-mile trail in a new—and wilder—way.

The race is on to harness the near-infinite power of nuclear fusion—by building a star on Earth. And scientists are closer ...

Space weather forecasting is decades behind Earth’s meteorology. Learn what makes auroras so unpredictable—and the real-time ...

See how the world awakens—from cloud hunting in Vietnam to cheesemaking in Italy—in experiences most travelers miss by ...

Pollution and rising temperatures can cause everything from fine lines to eczema flare-ups. We asked experts how you can ...

This Star Trek concept ignited a dream that humans could one day travel faster than the speed of light. Now physicists are ...

Ishiguro found that the invertebrates displayed a remarkable sense of creativity as they harvested food, mated, and burrowed ...

National Geographic Explorer-at-Large Bob Ballard revisits the Iron Bottom Sound—rediscovering vessels, and making new finds.