{
    "count": 12,
    "next": null,
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    "results": [
        {
            "id": 5543,
            "url": "https://svs.gsfc.nasa.gov/5543/",
            "result_type": "Visualization",
            "release_date": "2025-06-11T10:00:00-04:00",
            "title": "Solar Magnetic Field - from Solar Minimum to Solar Maximum",
            "description": "Visualizations of the solar magnetic field evolution as a potential-field-source-surface model (PFSS) from solar minimum (2019) to solar maximum (2025).",
            "hits": 223
        },
        {
            "id": 5344,
            "url": "https://svs.gsfc.nasa.gov/5344/",
            "result_type": "Visualization",
            "release_date": "2024-10-15T14:00:00-04:00",
            "title": "Solar Cycle 25 - the Solar Magnetic Field from Solar Minimum to Pole Flip",
            "description": "One advantage of long-lived missions like Solar Dynamics Observatory (SDO) is the ability to see slow but significant changes over long periods of time.This view from SDO's Helioseismic and Magnetic Imager (HMI) shows the evolution of sunspots on the solar disk starting from solar minimum (around December 2019) and into the maximum solar activity phase.  The video ends in September 2024, however this maximum phase is expected to continue into 2025.",
            "hits": 574
        },
        {
            "id": 4788,
            "url": "https://svs.gsfc.nasa.gov/4788/",
            "result_type": "Visualization",
            "release_date": "2020-02-04T12:00:00-05:00",
            "title": "The Solar Polar Magnetic Field",
            "description": "From our single vantage point of Earth, our view of the Sun is never complete.  While the far-side of the Sun eventually rotates into view, coverage of the Sun's polar regions is never satisfactory as perspective effects either completely block our view or create a distorted view.   We must often resort to computer modeling of these solar polar regions.This visualization presents the Potential Field Source Surface (PFSS) magnetic field model based on solar observations covering the years 2017-2019.  One version also presents the 'hole' in our measurements of the solar polar region.  The region oscillates in size over the course of the year due to the changing perspective created by the tilt of Earth's orbital plane with the solar equator.   In this region, researchers must resort to approximations to build a more complete view of the solar magnetic field.Why is the solar magnetic field in this region important?  Because the combined with the outgoing flow of the solar wind, the magnetic field lines from the polar regions curve up, and then back down to near the Sun's equatorial plane, which is still fairly close to the orbital plane of Earth and other planets in our solar system.  This gives the Sun's polar magnetic field a significant influence on the space weather impacting Earth and crewed and uncrewed assets around the solar system. || ",
            "hits": 94
        },
        {
            "id": 4623,
            "url": "https://svs.gsfc.nasa.gov/4623/",
            "result_type": "Visualization",
            "release_date": "2018-04-30T10:00:00-04:00",
            "title": "The Dynamic Solar Magnetic Field with Introduction",
            "description": "This narrated visualization  transitions from a view of the Sun in visible light, to a view in ultraviolet light showing the plasma flowing along solar magnetic structures, to the underlying magnetic field of the solar photosphere, to a model construction of magnetic fieldlines above the photosphere.This video is also available on our YouTube channel. || SolarMagnetism_UHD3840.04000_print.jpg (1024x576) [198.9 KB] || SolarMagnetism_UHD3840.04000_thm.png (80x40) [6.0 KB] || SolarMagnetism_UHD3840.04000_web.png (320x180) [84.1 KB] || SolarMagnetism_ProRes3_HD1080_p30_Narrated.webm (1280x720) [33.9 MB] || SolarMagnetism_ProRes3_HD1080_p30_Narrated.mov (1280x720) [7.4 GB] || SolarMagnetism_ProRes3_UHD2160_p30_Narrated.mov (3840x2160) [12.8 GB] || ",
            "hits": 132
        },
        {
            "id": 4391,
            "url": "https://svs.gsfc.nasa.gov/4391/",
            "result_type": "Visualization",
            "release_date": "2016-01-29T10:00:00-05:00",
            "title": "The Dynamic Solar Magnetic Field",
            "description": "A visualization of the slow changes of the solar magnetic field over the course of four years. || PFSSbasicView_inertial.HD1080i.0400_print.jpg (1024x576) [168.7 KB] || PFSSbasicView_inertial.HD1080i.0400_searchweb.png (180x320) [78.9 KB] || PFSSbasicView_inertial.HD1080i.0400_thm.png (80x40) [5.8 KB] || PFSSbasicView_inertial_1080p30.webm (1920x1080) [18.1 MB] || PFSSbasicView (1920x1080) [128.0 KB] || PFSSbasicView_inertial_1080p30.mp4 (1920x1080) [326.6 MB] || PFSSbasicView_inertial_1080p10.mp4 (1920x1080) [470.2 MB] || PFSSbasicView_HD1080p10.mov (1920x1080) [804.4 MB] || PFSSbasicView_inertial_1080p30.mp4.hwshow [232 bytes] || ",
            "hits": 114
        },
        {
            "id": 4124,
            "url": "https://svs.gsfc.nasa.gov/4124/",
            "result_type": "Visualization",
            "release_date": "2013-12-05T18:00:00-05:00",
            "title": "The Sun's Magnetic Field",
            "description": "During the course of the approximately 11 year sunspot cycle, the magnetic field of the Sun reverses. The last time this happened was around the year 2000. Using magnetograms from the SOHO/MDI and SDO/HMI instruments, it is possible to examine possible configurations of the magnetic field above the photosphere. These magnetic configurations are important in understanding potential conditions of severe space weather.The magnetic field in this animation is constructed using the Potential Field Source Surface (PFSS) model. The PFSS model is one of the simplest yet realistic models we can explore. Using the solar magnetograms as the 'source surface' of the field, it builds the field structure from the photosphere out to about two solar radii (an altitude of 1 solar radius). These visuals were generated using the SolarSoft package. In this visualization, the white magnetic field lines are considered 'closed'. The move up, and then return to the solar surface. The green and violet lines represenent field lines that are considered 'open'. Green represents positive magnetic polarity, and violet represents negative polarity. These field lines do not connect back to the Sun but with more distant magnetic fields in space. These field lines act as easy 'roads' for the high-speed solar wind. || ",
            "hits": 315
        },
        {
            "id": 3606,
            "url": "https://svs.gsfc.nasa.gov/3606/",
            "result_type": "Visualization",
            "release_date": "2009-07-06T00:00:00-04:00",
            "title": "Magnetospheric Multiscale Mission (MMS) Nightside Orbit Animation for the Preliminary Design Review (PDR)",
            "description": "This visualization uses simulated ephemerides to show the proposed orbits of the Magnetospheric Multiscale Mission (MMS) during the \"nightside\" orbit phase. The movie initially shows the general orientation of the orbit with respect to the Earth, Moon, and Sun. It then moves in towards the Earth revealing Earth's magnetic field. The camera then moves down towards the dark side of the Earth showing how MMS will fly through the tail of the magnetosphereThis visualization was created in support of the MMS Preliminary Design Review (PDR) which was held May 4th through May 7th of 2009. || ",
            "hits": 2799
        },
        {
            "id": 3346,
            "url": "https://svs.gsfc.nasa.gov/3346/",
            "result_type": "Visualization",
            "release_date": "2006-03-30T00:00:00-05:00",
            "title": "Grand Tour of the Coronal Loops Model",
            "description": "This is a longer coronal loops tour combining components of the two previous versions (Animation IDs 3286 and 3287). The solar model is constructed from magnetogram data collected by SOHO/MDI. Because we do not see the full solar surface at any one time, the magnetograms collected over the course of a solar rotation are processed through a time-evolving solar surface model which provides a snapshot of the surface at a fixed time. The resulting magnetogram is then processed through the Potential Field Source Surface (PFSS) model which constructs the magnetic field above the solar surface. The magnetic field around the Sun is then analyzed for field lines, which creates the loop structures we see in the model. Hot plasma tends to flow along the magnetic field lines, creating the coronal loops. These loops are only visible at the higher temperatures corresponding to ultraviolet light, in this case, 195 angstroms, one of the filter wavelengths of SOHO/EIT. For this version, we color the coronal loops green for ready comparison to the EIT 195 angstrom imagery using the EIT standard color table. || ",
            "hits": 64
        },
        {
            "id": 3286,
            "url": "https://svs.gsfc.nasa.gov/3286/",
            "result_type": "Visualization",
            "release_date": "2005-10-27T00:00:00-04:00",
            "title": "Flight through the Coronal Loops",
            "description": "Here we illustrate the potential benefits of the 3-D views of the Sun which STEREO will provide. Starting with a simple 2-D EIT ultraviolet image from SOHO, we transition to a 3-D model and move through the coronal loops which are constructed along solar magnetic fields. The solar model is constructed from magnetogram data collected by SOHO/MDI. Because we do not see the full solar surface at any one time, the magnetograms collected over the course of a solar rotation are processed through a time-evolving solar surface model to provide a snapshot of the surface at a fixed time. The resulting magnetogram is then processed through the Potential Field Source Surface (PFSS) model. Coronal loops are visible at the higher temperatures of ultraviolet light, in this case, 195 angstroms, the filter wavelength of SOHO/EIT. For this version, we color the coronal loops green for ready comparison to the EIT 195 angstrom imagery using the EIT 'standard color table'. || ",
            "hits": 27
        },
        {
            "id": 3287,
            "url": "https://svs.gsfc.nasa.gov/3287/",
            "result_type": "Visualization",
            "release_date": "2005-10-27T00:00:00-04:00",
            "title": "Rotating Tour of Solar Coronal Loops",
            "description": "A slow rotating tour of a data-based coronal loop model. This version is designed for continuous loop play. The solar model is constructed from magnetogram data collected by SOHO/MDI. Because we do not see the full solar surface at any one time, the magnetograms collected over the course of a solar rotation are processed through a time-evolving solar surface model to provide a snapshot of the surface at a fixed time. The resulting magnetogram is then processed through the Potential Field Source Surface (PFSS) model. Coronal loops are visible at the higher temperatures of ultraviolet light, in this case, 195 angstroms, the filter wavelength of SOHO/EIT. || ",
            "hits": 44
        },
        {
            "id": 3211,
            "url": "https://svs.gsfc.nasa.gov/3211/",
            "result_type": "Visualization",
            "release_date": "2005-08-16T12:00:00-04:00",
            "title": "Space Weather Forecasting: Quiet Times Ahead",
            "description": "SOHO/MDI magnetograms combined with the Potential-Field Source-Surface (PFSS) model can be used to generate a model of magnetic field lines in the lower part of the solar corona. When these models are compared to the loops visible in TRACE imagery, a good match (as in this case) indicates that the region will not generate flare events over the next few days. || ",
            "hits": 11
        },
        {
            "id": 3212,
            "url": "https://svs.gsfc.nasa.gov/3212/",
            "result_type": "Visualization",
            "release_date": "2005-08-16T12:00:00-04:00",
            "title": "Space Weather Forecasting: Active Times Ahead",
            "description": "SOHO/MDI magnetograms combined with the Potential-Field Source-Surface (PFSS) model can be used to generate a model of magnetic field lines in the lower part of the solar corona. When these models are compared to the loops visible in TRACE imagery, a bad match (as in this case) indicates that the region will generate flare events over the next few days. || ",
            "hits": 15
        }
    ]
}