Wikipedia:Featured pictures/Space/Understanding

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  Fraunhofer lines, by Cyamahat
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  Design of the Extremely Large Telescope, by ESO
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  IceCube Neutrino Observatory, by Christopher Michel
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  Very Large Telescope, by ESO/Gerhard Hüdepohl (edited by Huntster)
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  Orion, by Abd al-Rahman al-Sufi
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  Kitt Peak National Observatory, by KPNO/NOIRLab/NSF/AURA/T. Slovinský
• Double Asteroid Redirection Test, by NASA/Johns Hopkins APL
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  Geology of the Moon, by the Chinese Academy of Sciences
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  Martian dust devil, by NASA/JPL-Caltech/SSI
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  InSight lander testing, by NASA/JPL-Caltech/Lockheed Martin
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  Earthrise, 2015, by NASA/Goddard Space Flight Center/Arizona State University (edited by Bammesk)
• Collapse of Arecibo Telescope, by the National Science Foundation
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  Holmdel Horn Antenna, by NASA (restored by Bammesk)
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  Topographic map of Mars, by NASA/JPL/USGS (edited by WolfmanSF)
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  Structure of the Sun, by Kelvin13
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  Comparison of satellite navigation orbits, by Cmglee
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  Water ice layers in Olympia Rupes at Climate of Mars, by NASA/JPL-Caltech/University of Arizona
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  Exoplanets of HR 8799, by Jason Wang, et al (edited by Huntster and Janke)
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  Parkes Observatory, by ISS Expedition 23 CSIRO
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  Curiosity at Big Sky, by NASA/JPL-Caltech/MSSS
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  Chronology of the universe, by NASA/WMAP (edited by Kaldari)
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  Mirrors of the James Webb Space Telescope prepared for acceptance testing, by NASA/MSFC/David Higginbotham
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  Draco, by Sidney Hall and Richard Rouse Bloxam (restored by Adam Cuerden)
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  Hercules, by Sidney Hall and Richard Rouse Bloxam (restored by Adam Cuerden)
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  Camelopardalis, by Sidney Hall and Richard Rouse Bloxam (restored by Adam Cuerden)
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  Cygnus, by Sidney Hall and Richard Rouse Bloxam (restored by Adam Cuerden)
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  Aries, by Sidney Hall and Richard Rouse Bloxam (restored by Adam Cuerden)
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  Taurus, by Sidney Hall and Richard Rouse Bloxam (restored by Adam Cuerden)
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  Gemini, by Sidney Hall and Richard Rouse Bloxam (restored by Adam Cuerden)
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  Cancer, by Sidney Hall and Richard Rouse Bloxam (restored by Adam Cuerden)
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  Léo Major, by Sidney Hall and Richard Rouse Bloxam (restored by Adam Cuerden)
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  Virgo, by Sidney Hall and Richard Rouse Bloxam (restored by Adam Cuerden)
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  Libra, by Sidney Hall and Richard Rouse Bloxam (restored by Adam Cuerden)
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  Scorpius, by Sidney Hall and Richard Rouse Bloxam (restored by Adam Cuerden)
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  Sagittarius, by Sidney Hall and Richard Rouse Bloxam (restored by Adam Cuerden)
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  Ophiuchus, by Sidney Hall and Richard Rouse Bloxam (restored by Adam Cuerden)
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  Lynx, by Sidney Hall and Richard Rouse Bloxam (restored by Adam Cuerden)
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  Canis Major, by Sidney Hall and Richard Rouse Bloxam (restored by Adam Cuerden)
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  Diagram of Jupiter, by Kelvin13
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  Aquila, by Sidney Hall and Richard Rouse Bloxam (restored by Adam Cuerden)
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  Capricornus, by Sidney Hall and Richard Rouse Bloxam (restored by Adam Cuerden)
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  Cetus, by Sidney Hall and Richard Rouse Bloxam (restored by Adam Cuerden)
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  Hydra, by Sidney Hall and Richard Rouse Bloxam (restored by Adam Cuerden)
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  Cassiopeia, by Sidney Hall and Richard Rouse Bloxam (restored by Adam Cuerden)
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  Cepheus, by Sidney Hall and Richard Rouse Bloxam (restored by Adam Cuerden)
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  Andromeda, by Sidney Hall and Richard Rouse Bloxam (restored by Adam Cuerden)
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  Perseus, by Sidney Hall and Richard Rouse Bloxam (restored by Adam Cuerden)
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  Boötes, by Sidney Hall and Richard Rouse Bloxam (restored by Adam Cuerden)
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  Pisces, by Sidney Hall and Richard Rouse Bloxam (restored by Adam Cuerden)
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  Auriga, by Sidney Hall and Richard Rouse Bloxam (restored by Adam Cuerden)
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  Aquarius, by Sidney Hall and Richard Rouse Bloxam (restored by Adam Cuerden)
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  Monoceros, by Sidney Hall and Richard Rouse Bloxam (restored by Adam Cuerden)
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  Mars rovers at Rover (space exploration), by NASA (edited by Nova13)
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  Prague astronomical clock, by Godot13
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  Iranian astrolabe, by M.safarniya (edited by Jacopo188)
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  Curiosity at Rocknest, by NASA/JPL-Caltech/MSSS (edited by Julian Herzog)
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  Skylab at 1979 in spaceflight, by Skylab 4 crew
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  Mirror of the James Webb Space Telescope during cryogenic testing, by NASA/MSFC/David Higginbotham/Emmett Given (edited by Papa Lima Whiskey)
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  Laser toward the Milky Way's centre at Adaptive optics, by ESO/Yuri Beletsky
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  Solar flare, by NASA/SDO/AIA (edited by Hive001)
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  Aurora Australis, by NASA/ISS Expedition 23 crew
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  Cosmic microwave background radiation at Ehlers–Geren–Sachs theorem, by NASA/WMAP
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  Relative sizes of the planets in the Solar System and several well-known stars at List of largest stars, by Dave Jarvis
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  Mount Pleasant Radio Observatory, by JJ Harrison
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  Ursa Major, by Sidney Hall and Richard Rouse Bloxam (restored by Adam Cuerden)
• Lunar transit of the Sun at Transit (astronomy), by NASA/STEREO
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  Geocentric model, by Bartolomeu Velho
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  August 2007 lunar eclipse, by Fir0002
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  Terraforming of Mars, by Ittiz
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  Pioneer plaque, by Carl Sagan, Frank Drake and Linda Salzman Sagan
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  Solar eclipse of August 11, 1999, by Luc Viatour (edited by Diliff)
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  Earthrise, 1968, by William Anders
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  Sunspot, by NASA/TRACE
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  Persian astrolabe at Astronomy in the medieval Islamic world, by Andrew Dunn

Animations

Algol AB, by Fabien Baron (edited by Stigmatella aurantiaca)

Libration of the Moon, by Tomruen

Apparent retrograde motion of Mars, by Seav