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from article Precession of equinoxes
Motion of the Earth's axis of rotation.
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from article Cosmic background radiation
Timeline of the origin and evolution of the universe from a hot, dense state (left) to the current star-and galaxy-filled cosmos that arose over eons of the universe’s history and through today (right). The cosmic microwave background, labeled the…
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from article Cosmic background radiation
The most detailed map ever made of the cosmic microwave background, a snapshot of the universe at 380,000 years of age, obtained by the Planck spacecraft during its observing run from 2009 to 2013. Anisotropies—tiny temperature fluctuations—are…
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from article Cosmic background radiation
The 15-meter horn antenna at Bell Telephone Laboratories in Holmdel, New Jersey where the first detection of the cosmic microwave background was made. (Credit: NASA)
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from article Venus Express
An artist's impression of the Venus Express spacecraft orbiting Venus. (Credit: ESA)
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from article Venus Express
False color image of cloud features of Venus at wavelength of 1.73 μm in the infrared, viewed by VIRTIS on Venus Express. (Credit: ESA/VIRTIS/INAF–ASF/Paris Observatory–LESIA)
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from article Venus Express
The science instruments onboard Venus Express. (Credit: ESA)
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from article Venus Express
The solar wind, illustrated in lines propagating from the Sun, as it interacts with the magnetosphere of Venus, generating a magnetotail (colored brown and emanating from the planetary body close to the Sun). Earth's magnetosphere, depicted in blue,…
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from article Venus Express
An artist's impression of an active volcano erupting on the surface of Venus. (Credit: ESA/AOES)
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from article Light pollution
Photographs taken at night of the same house in Goodwood, Ontario, located about 60 km (37 mi) northeast of Toronto, Canada, before and after the August 2003 blackout. At left, before the blackout, sky glow is plainly visible. At right, after the…
