Nationalgeographic Alternativas & Concorrentes
The National Geographic Society is a global non-profit organization committed to exploring, illuminating, and protecting the wonder of our world.
Alternativas e concorrentes para nationalgeographic.org em termos de conteúdo, tráfego e estrutura
Explore National Geographic. A world leader in geography, cartography and exploration.
Explore Lisbdnet.com for vetted academic articles, tutorials, and guides. Your trusted source for unbiased, high-quality educational content.
U.S. Department of Commerce
We provide science about the natural hazards that threaten lives and livelihoods; the water, energy, minerals, and other natural resources we rely on; the health of our ecosystems and environment; and the impacts of climate and land-use change. Our scientists develop new methods and tools to supply timely, relevant, and useful information about the Earth and its processes.
Whether you have questions about the universe or a molecule compound or what biome you live in, Sciencing.com is your go-to source for all things science.
History, Travel, Arts, Science, People, Places Smithsonian Magazine.
Live Science features groundbreaking developments in science, space, technology, health, the environment, our culture and history.
Scientific American is the essential guide to the most awe-inspiring advances in science and technology, explaining how they change our understanding of the world and shape our lives.
Explore the fact-checked online encyclopedia from Encyclopaedia Britannica with hundreds of thousands of objective articles, biographies, videos, and images from experts.
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National Weather Service.
NASA.gov brings you the latest news, images and videos from America's space agency, pioneering the future in space exploration, scientific discovery and aeronautics research.
U.S. Environmental Protection Agency | US EPA.
Weather Underground provides local & long-range weather forecasts, weather reports, maps & tropical weather conditions for locations worldwide
USDA.
The National Park Service cares for special places saved by the American people so that all may experience our heritage.
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Learn for free about math, art, computer programming, economics, physics, chemistry, biology, medicine, finance, history, and more. Khan Academy is a nonprofit with the mission of providing a free, world-class education for anyone, anywhere.
LibreTexts is developing the next generation of open-access texts. Open. Free. Accessible to all.
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Breaking science news and articles on global warming, extrasolar planets, stem cells, bird flu, autism, nanotechnology, dinosaurs, evolution -- the latest discoveries in astronomy, anthropology, biology, chemistry, climate & environment, computers, engineering, health & medicine, math, physics, psychology, technology, and more -- from the world's leading universities and research organizations.
Welcome to A+E Networks EMEA is global broadcaster who reach audiences in over 100 countries, including the UK, Nordics, Benelux, Central & Eastern Europe, Spain, Italy and Germany, Africa, and the Middle East.
Official website of the Smithsonian, the world's largest museum and research complex, with 19 museums, 9 research centers, and affiliates around the world.
JSTOR is a digital library of academic journals, books, and primary sources.
Dictionary.com is the world’s leading online source for English definitions, synonyms, word origins and etymologies, audio pronunciations, example sentences, slang phrases, idioms, word games, legal and medical terms, Word of the Day and more. For over 20 years, Dictionary.com has been helping millions of people improve their use of the English language with its free digital services.
The dictionary by Merriam-Webster is America's most trusted online dictionary for English word definitions, meanings, and pronunciation. #wordsmatter
Edité par des journalistes expérimentés, The Conversation offre des analyses informées et nourrit le débat sur les grands sujets qui touchent la planète. Mais nous suivons également à la loupe les dernières découvertes et les derniers travaux du secteur académique et de la recherche.
Know your rights. Find what data we collect and how it is used in regard to our advertising policies.
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First published in 1869, Nature is the world’s leading multidisciplinary science journal. Nature publishes the finest peer-reviewed research that drives ground-breaking discovery, and is read by thought-leaders and decision-makers around the world.
JanetPanic.com – World History Portal.
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Saint-germain-des-pres, 75Conditions et prévisions météorologiques de la jornée et de la nuit et radar Doppler de The Weather Channel | Weather.com