Five facts about solar eclipses
Learn more about solar eclipses, including their connection to Albert Einstein's general theory of relativity.
Encyclopædia Britannica, Inc.
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© University of Melbourne, Victoria, Australia (A Britannica Publishing Partner)A discussion of high-tech wildfire management in Victoria, Australia.
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Encyclopædia Britannica, Inc.Every year, monarch butterflies fly south for winter—sometimes traveling up to 1,800 miles.
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Encyclopædia Britannica, Inc.All wild axolotls live in the same small lake, and some of the qualities of this unique ecological context have allowed them to remain in their juvenile stage throughout their lives.Media Editor: Lee Goldstein
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© Open University (A Britannica Publishing Partner)A discussion of the Nice model (named for Nice, France) of the formation of the orbital structure of the outer planets and the Kuiper belt. The Nice model also accounts for the age of some Moon rocks.
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Encyclopædia Britannica, Inc.A solar eclipse is a celestial phenomenon occurring when the Moon appears to block out the Sun.
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NASA Scientific Visualization StudioLearn about the total solar eclipse of April 8, 2024, by watching this NASA visualization of the Moon's umbra—the darkest part of the Moon's shadow—as it crosses North America.
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Contunico © ZDF Studios GmbH, Mainz; Thumbnail © Joggie Botma/Dreamstime.comOverview of gravity, with a focus on zero gravity.
