{
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    "results": [
        {
            "id": 3940,
            "url": "https://svs.gsfc.nasa.gov/3940/",
            "result_type": "Visualization",
            "release_date": "2012-06-12T00:00:00-04:00",
            "title": "Venus Transit 2012 from Solar Dynamics Observatory",
            "description": "Full disk and Tracking views of Venus Transit from Solar Dynamics Observatory (SDO). It includes images taken by the Helioseismic and Magnetic Imager (HMI) and the Atmospheric Imaging Assembly (AIA).These are the basic images, collected from the telemetry. To see the insets composited, see Venus Transit 2012 Composited Visuals. || ",
            "hits": 79
        },
        {
            "id": 3941,
            "url": "https://svs.gsfc.nasa.gov/3941/",
            "result_type": "Visualization",
            "release_date": "2012-06-11T14:00:00-04:00",
            "title": "Venus Transit 2012 Composited Visuals",
            "description": "These visualizations were generated by compositing the small field-of-view, high-cadence closeups of Venus with the full-disk, low-cadence imagery from Solar Dynamics Observatory (SDO). Two different instruments are used: the Helioseismic and Magnetic Imager (HMI) which sees light in the visible range, and the Atmospheric Imaging Assembly (AIA) which sees light in several wavelengths in the ultraviolet range. To find out more information about these instruments, check out The Atmospheric Imaging Assembly Tutorial.Some artifacts may be visible from the compositing, but you have to look pretty closely to see them.The color table threshold was raised for these images, reducing the amount of noise visible in the images. Note: There is an interesting artifact worthy of mention and clarification, and that is as Venus crosses the solar limb, the limb appears to be visible through the planet in some of the imagers (most notably the ultraviolet channels). Discussion with the scientists who built the imagers suggest this might be 'crosstalk' between the readouts of the four CCD panels that make up a complete image. It is an artifact of the imaging system. || ",
            "hits": 103
        },
        {
            "id": 3943,
            "url": "https://svs.gsfc.nasa.gov/3943/",
            "result_type": "Visualization",
            "release_date": "2012-05-29T00:00:00-04:00",
            "title": "Venus Transit - 2012",
            "description": "It was your last chance for the next 105 years.A transit is when a planet passes directly between the Sun and the Earth and we see the planet as a small dot moving slowly across the face of the Sun. A Venus transit occurred in 2004 (see Venus Transit from GOES/SXI). Prior to that it was 1882. The last Venus transit occurred on June 5-6, 2012 and the next one won't occur until 2117 (See the NASA Eclipse Web Site).To understand the significance of these events, it helps to know the history of how the Venus transits provided one of the first estimates of the size of the Solar System, and eventually the Universe (see A Brief History of the Transit of Venus).In this visualization, there are a few things which should be noted. 1) The camera view is NOT from anywhere on the surface of the Earth, but corresponds to an observer positioned along the Earth-Sun line, but over the north pole of the Earth. This causes the path of Venus to cross the solar disk lower (closer to the solar equator) than it would appear to an observer on the surface of the Earth.2) The ephemeris used for computing the planetary positions was not the high-precision JPL ephemeris (DE-421), but a lower-precision approximation. Yet, when tracked in detail, the transit takes place only about five hours later. It was decided that since the view of the transit in this visual does not correspond to any actual location ON the Earth, it might be misleading to present high-precision timing of the event.This visualization was developed for conceptual illustration and not meant for precision scientific use. || ",
            "hits": 106
        },
        {
            "id": 20040,
            "url": "https://svs.gsfc.nasa.gov/20040/",
            "result_type": "Animation",
            "release_date": "2004-12-03T12:00:00-05:00",
            "title": "From Venus to Venus Transit",
            "description": "An artist conception of the surface of Venus to Venus transit || ",
            "hits": 64
        },
        {
            "id": 20041,
            "url": "https://svs.gsfc.nasa.gov/20041/",
            "result_type": "Animation",
            "release_date": "2004-12-03T12:00:00-05:00",
            "title": "Conceptual Venus Transit",
            "description": "A close-up animation of the Venus transit. || A close-up view of the Venus transit. || Closeup_pre.00002_print.jpg (1024x768) [42.6 KB] || Closeup_thm.png (80x40) [20.0 KB] || Closeup_pre.jpg (320x240) [51.2 KB] || Closeupsml_pre.jpg (320x240) [51.2 KB] || Closeupsml_pre_searchweb.jpg (320x180) [53.9 KB] || Closeup.webmhd.webm (960x540) [929.9 KB] || Closeup.mpg (720x486) [4.6 MB] || Closeupsml.mpg (360x240) [1.7 MB] || ",
            "hits": 94
        },
        {
            "id": 2966,
            "url": "https://svs.gsfc.nasa.gov/2966/",
            "result_type": "Visualization",
            "release_date": "2004-07-21T12:00:00-04:00",
            "title": "Venus Transit from GOES/SXI",
            "description": "The planet Venus is seen passing between the Earth and the Sun in this sequence of images taken by GOES/SXI.  The last Venus Transit was in 1882, the next will be in 2012. || ",
            "hits": 99
        }
    ]
}