Observe a close-up of a rotating sunspot
Close-up of a rotating sunspot.
NASA/GSFC/Scientific Visualization Studio
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Encyclopædia Britannica, Inc.Algae blooms can make lakes and oceans look like abstract paintings.
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Encyclopædia Britannica, Inc.Plot twist: bears aren't true hibernators.Media Editor: Miranda Chabot
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Encyclopædia Britannica, Inc.All living things are composed of cells.
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NASA/GSFC/SDO/AIAA solar flare and the resulting shock wave as observed by the Atmospheric Imaging Assembly on board the Solar Dynamics Observatory, April 8, 2010.
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Encyclopædia Britannica, Inc.How big is our world?
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Encyclopædia Britannica, Inc.An overview of spatial relationships between the Sun, the Moon, and Earth during eclipses of the Sun and the Moon.
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Encyclopædia Britannica, Inc.Learn about a total solar eclipse by observing it when it reaches totality.
