This Month in Photo of the Day: National Geographic Magazine
At an electric plant in southern Spain, mirrors as big as houses catch some of the 120 quadrillion watts of sunlight that constantly fall on Earth. Government subsidies for this pricey yet promising power source have made Europe the world's solar capital.
See our editors' selections in each category from this year's National Geographic International Photography Contest—and keep an eye on the competition.
See the first images of Earth taken from space, the first photo of Mars, the first image captured out of our solar system, and other major milestones in space photography.
See incredibly colorful and detailed patterns of nature up close with a gallery of magnified views of some of Earth’s smallest entities—perfect for your desktop.