{
    "count": 42,
    "next": null,
    "previous": null,
    "results": [
        {
            "id": 5609,
            "url": "https://svs.gsfc.nasa.gov/5609/",
            "result_type": "Visualization",
            "release_date": "2026-01-26T05:00:00-05:00",
            "title": "Heliophysics Satellite Fleet - 2026",
            "description": "A tour of the NASA Heliophysics fleet from near-Earth satellites out to the Voyagers beyond the heliopause.",
            "hits": 872
        },
        {
            "id": 5573,
            "url": "https://svs.gsfc.nasa.gov/5573/",
            "result_type": "Visualization",
            "release_date": "2025-09-23T13:00:59-04:00",
            "title": "FireSense Satellite Fleet",
            "description": "No description available.",
            "hits": 83
        },
        {
            "id": 5571,
            "url": "https://svs.gsfc.nasa.gov/5571/",
            "result_type": "Visualization",
            "release_date": "2025-07-22T17:00:00-04:00",
            "title": "NASA's Fleet of Active Satellites (July 2025)",
            "description": "This visualization shows the orbits of NASA satellites considered operational as of July 2025. It includes both NASA-managed missions and those operated by partner organizations.",
            "hits": 1584
        },
        {
            "id": 5476,
            "url": "https://svs.gsfc.nasa.gov/5476/",
            "result_type": "Visualization",
            "release_date": "2025-05-16T13:00:00-04:00",
            "title": "SOS - Earth Observing Fleet - Jan 2025",
            "description": "An animated view of NASA's Earth observing fleet",
            "hits": 324
        },
        {
            "id": 5508,
            "url": "https://svs.gsfc.nasa.gov/5508/",
            "result_type": "Visualization",
            "release_date": "2025-02-25T00:00:00-05:00",
            "title": "Committee on Earth Observation Satellites (CEOS) - Fleet - 2025",
            "description": "A global view of the CEOS fleet of satellites. Color-coded satellites are operated by a single agency, while white satellites represent those operated through partnerships between multiple organizations. This version also includes logos and a list of participating organizations.",
            "hits": 109
        },
        {
            "id": 5326,
            "url": "https://svs.gsfc.nasa.gov/5326/",
            "result_type": "Visualization",
            "release_date": "2024-07-18T12:00:00-04:00",
            "title": "Moon Essentials: Orbit",
            "description": "The mean (average) orbit of the Moon as it changes over the course of 8.5 years. Shows the tilt of the orbit and the slow rotation of the nodes (where the Moon's orbit intersects the orbit plane of the Earth) and the apses (the near and far points). This is a simplified model that ignores the short-term influence of the Sun and the rest of the solar system. || simple.1351_print.jpg (1024x576) [62.0 KB] || simple.1351_searchweb.png (320x180) [39.1 KB] || simple.1351_thm.png (80x40) [3.0 KB] || simple [0 Item(s)] || moon_orbit_simple_1080p30.mp4 (1920x1080) [9.1 MB] || moon_orbit_simple_720p30.mp4 (1280x720) [5.0 MB] || moon_orbit_simple_360p30.mp4 (640x360) [2.3 MB] || ",
            "hits": 4598
        },
        {
            "id": 5199,
            "url": "https://svs.gsfc.nasa.gov/5199/",
            "result_type": "Visualization",
            "release_date": "2024-06-24T16:10:00-04:00",
            "title": "Moon Essentials: Libration in Latitude",
            "description": "A 2-frame GIF showing the extremes of lunar libration in latitude. || liblat.gif (1080x1080) [1.1 MB] ||",
            "hits": 435
        },
        {
            "id": 5195,
            "url": "https://svs.gsfc.nasa.gov/5195/",
            "result_type": "Visualization",
            "release_date": "2024-06-24T16:00:00-04:00",
            "title": "Moon Essentials: Libration in Longitude",
            "description": "A 2-frame GIF showing the extremes of lunar libration in longitude. || liblon.gif (1080x1080) [1.1 MB] || ",
            "hits": 827
        },
        {
            "id": 5290,
            "url": "https://svs.gsfc.nasa.gov/5290/",
            "result_type": "Visualization",
            "release_date": "2024-06-21T00:00:00-04:00",
            "title": "Identifying Eclipsing Star Systems using Light Curves",
            "description": "This data visualization presents a comprehensive view of four different hypothetical binary star systems, highlighting their stellar orbits and light curves. The top row offers a top-down perspective of each binary system, illustrating the stars (white spheres) and their elliptical orbits around each other. The middle row provides a side-on view of the same systems, offering a simulated perspective as if observed from Earth, assuming the systems' orbital planes are aligned similarly to the ecliptic plane of our Solar System. The bottom row displays the observed light curves for each system, graphically representing the cumulative brightness of the stars over time. || eclipsing_binary_light_curves_explainer.02000_print.jpg (1024x576) [17.3 KB] || eclipsing_binary_light_curves_explainer.02000_searchweb.png (320x180) [4.3 KB] || eclipsing_binary_light_curves_explainer.02000_thm.png (80x40) [823 bytes] || eclipsing_binary_light_curves_explainer_2160p60.mp4 [7.9 MB] || eclipsing_binary_light_curves_explainer [256.0 KB] || ",
            "hits": 155
        },
        {
            "id": 5133,
            "url": "https://svs.gsfc.nasa.gov/5133/",
            "result_type": "Visualization",
            "release_date": "2023-07-26T00:00:00-04:00",
            "title": "OSIRIS-REx Return Cruise/Extended Mission to Apophis",
            "description": "Top-down view of OSIRIS-REx’s return to Earth after studying asteroid Bennu. A sample of Bennu’s surface carried by the spacecraft will be deposited at Earth on Sept. 24, 2023.  The spacecraft will then begin its extended mission - beginning the long journey towards a rendezvous with Apophis in 2029. || orex_return.02345_print.jpg (1024x576) [37.8 KB] || orex_return.02345_searchweb.png (320x180) [40.7 KB] || orex_return.02345_thm.png (80x40) [2.3 KB] || orex_return (3840x2160) [0 Item(s)] || orex_return_2160p60.mp4 (3840x2160) [125.3 MB] || orex_return_2160p60_prores.mov (3840x2160) [34.9 GB] || ",
            "hits": 176
        },
        {
            "id": 5067,
            "url": "https://svs.gsfc.nasa.gov/5067/",
            "result_type": "Visualization",
            "release_date": "2023-01-30T00:00:00-05:00",
            "title": "Earth Observing Fleet - Now",
            "description": "Visualizations depicting a near-real-time view of NASA fleet of Earth-orbiting satellites.",
            "hits": 0
        },
        {
            "id": 5061,
            "url": "https://svs.gsfc.nasa.gov/5061/",
            "result_type": "Visualization",
            "release_date": "2023-01-12T11:00:00-05:00",
            "title": "Earth Observing Fleet (January 2023)",
            "description": "Earth observing fleet for January 2023 || fleet_2023_jan.00001_print.jpg (1024x576) [100.1 KB] || fleet_2023_jan.00001_searchweb.png (320x180) [57.8 KB] || fleet_2023_jan.00001_thm.png (80x40) [3.9 KB] || fleet_2023_jan_1080p60.mp4 (1920x1080) [57.2 MB] || fleet_2023_jan_1080p60.webm (1920x1080) [12.0 MB] || fleet_2023_jan_4k (3840x2160) [0 Item(s)] || fleet_2023_jan_hyperwall (9600x3240) [0 Item(s)] || fleet_2023_jan_2160p60.webm (3840x2160) [39.2 MB] || fleet_2023_jan_2160p60.mp4 (3840x2160) [169.3 MB] || fleet_2023_jan_2160p30.mp4 (3840x2160) [153.4 MB] || ",
            "hits": 141
        },
        {
            "id": 5021,
            "url": "https://svs.gsfc.nasa.gov/5021/",
            "result_type": "Visualization",
            "release_date": "2022-10-11T00:00:00-04:00",
            "title": "NOAA-21, NOAA-20, and Suomi NPP satellite orbits",
            "description": "This short animation shows the orbits of JPSS-2 (NOAA-21), NOAA-20, and Suomi-NPP, after JPSS-2 is fully commissioned and all science products are provisional, notionally a year after its 2022 launch. When the JPSS-2 satellite reaches polar orbit, it will be renamed NOAA-21. NOAA-21 will provide the same observations as its sister satellites, NOAA-20 and Suomi-NPP. Once fully operational NOAA plans to place NOAA-21 in a quarter orbit ahead of Suomi-NPP, and NOAA 20 will be a quarter orbit behind SNPP. || JPSS2-NOAA20-SNPP.2500_print.jpg (1024x576) [77.0 KB] || JPSS2-NOAA20-SNPP_1080p60.mp4 (1920x1080) [10.0 MB] || JPSS2-NOAA20-SNPP_1080p60.webm (1920x1080) [3.1 MB] || JPSS2-NOAA20-SNPP (3840x2160) [0 Item(s)] || JPSS2-NOAA20-SNPP_2160p60.mp4 (3840x2160) [33.9 MB] || ",
            "hits": 211
        },
        {
            "id": 4970,
            "url": "https://svs.gsfc.nasa.gov/4970/",
            "result_type": "Visualization",
            "release_date": "2022-02-25T10:00:00-05:00",
            "title": "The Many Eyes on the Parker Solar Probe Perihelion (February 2022)",
            "description": "This visualization opens with a top-down view, then transtions to an oblique view of the inner solar system with the various solar-observing missions conducting coordinated observations of the plasma environment.   This version displays the imaging instrument camera frustums and solar magnetic field alignments - the 'glyph' version.  A version with just the orbits, no 'glyphs' is available in the [Download Options] menu. || SolarSynergiesPlus.Encounter2022FebTop2Side.HAE.AU.glyphs_CRTT.HD1080.01300_print.jpg (1024x576) [123.3 KB] || SolarSynergiesPlus.Encounter2022FebTop2Side.HAE.AU.glyphs_CRTT.HD1080.01300_searchweb.png (320x180) [78.9 KB] || SolarSynergiesPlus.Encounter2022FebTop2Side.HAE.AU.glyphs_CRTT.HD1080.01300_thm.png (80x40) [5.2 KB] || Encounter2022FebTop2Side (1920x1080) [0 Item(s)] || Encounter2022FebTop2Side.glyphs (1920x1080) [0 Item(s)] || SolarSynergiesPlus.Encounter2022FebTop2Side.HD1080_p30.mp4 (1920x1080) [47.0 MB] || SolarSynergiesPlus.Encounter2022FebTop2Side.glyphs.HD1080_p30.mp4 (1920x1080) [60.7 MB] || SolarSynergiesPlus.Encounter2022FebTop2Side.HD1080_p30.webm (1920x1080) [9.7 MB] || Encounter2022FebTop2Side (3840x2160) [0 Item(s)] || Encounter2022FebTop2Side.glyphs (3840x2160) [0 Item(s)] || SolarSynergiesPlus.Encounter2022FebTop2Side.UHD2160_p30.mp4 (3840x2160) [143.6 MB] || SolarSynergiesPlus.Encounter2022FebTop2Side.glyphs.UHD2160_p30.mp4 (3840x2160) [176.4 MB] || SolarSynergiesPlus.Encounter2022FebTop2Side.HD1080_p30.mp4.hwshow [220 bytes] || ",
            "hits": 99
        },
        {
            "id": 4905,
            "url": "https://svs.gsfc.nasa.gov/4905/",
            "result_type": "Animation",
            "release_date": "2021-05-10T16:00:00-04:00",
            "title": "A Web Around Asteroid Bennu – Visualizations",
            "description": "This visualization depicts the OSIRIS-REx spacecraft’s trajectory around the asteroid Bennu from the initial arrival in Dec 2018 through the final departure in April 2021.  The trajectory is presented in a Sun Bennu North reference frame.  Several mission segments are highlighted in white, leading up to the TAG sample collection maneuver on Oct 20, 2020. || web_around_bennu-orbits_bennu_stars.15100_print.jpg (1024x576) [105.4 KB] || web_around_bennu-orbits_bennu_stars.15100_searchweb.png (320x180) [55.9 KB] || web_around_bennu-orbits_bennu_stars.15100_thm.png (80x40) [3.5 KB] || web_around_bennu-orbits_bennu_stars_1080p60.mp4 (1920x1080) [215.7 MB] || web_around_bennu-orbits_bennu_stars (3840x2160) [0 Item(s)] || web_around_bennu-orbits_bennu_stars_2160p60.webm (3840x2160) [133.2 MB] || web_around_bennu-orbits_bennu_stars_2160p60.mp4 (3840x2160) [759.1 MB] || ",
            "hits": 110
        },
        {
            "id": 4857,
            "url": "https://svs.gsfc.nasa.gov/4857/",
            "result_type": "Animation",
            "release_date": "2020-09-21T00:00:00-04:00",
            "title": "OSIRIS-REx – Detailed Global Views of Asteroid Bennu",
            "description": "Looping animation of asteroid Bennu rotating. This 3D model of Bennu was created using 20cm resolution laser altimetry data and imagery taken by OSIRIS-REx. || bennu_spin_v3_02.1000_print.jpg (1024x576) [75.3 KB] || bennu_spin_v3_02.1000_searchweb.png (320x180) [18.4 KB] || bennu_spin_v3_02.1000_thm.png (80x40) [1.6 KB] || bennu_spin_v3_1080p30.mp4 (1920x1080) [77.5 MB] || Bennu_GlobalSpin_20cm_v2 (3840x2160) [0 Item(s)] || bennu_spin_v3_2160p30.webm (3840x2160) [32.4 MB] || bennu_spin_v3_2160p30.mp4 (3840x2160) [242.3 MB] || 4857_Bennu_Global_Spin_20cm.mov (3840x2160) [12.0 GB] || 01_dworkin_bennu.hwshow || ",
            "hits": 303
        },
        {
            "id": 4790,
            "url": "https://svs.gsfc.nasa.gov/4790/",
            "result_type": "Visualization",
            "release_date": "2020-03-20T00:00:00-04:00",
            "title": "Orbit Views of our Solar System",
            "description": "A visualization of the inner solar system from a view 25 degrees above the ecliptic.  Versions with and without planet labels. || SolarSystemOverview.oblique.inner.labels.clockSlate_EarthTarget.HD1080i.01000_print.jpg (1024x576) [79.3 KB] || SolarSystemOverview.oblique.inner.labels.clockSlate_EarthTarget.HD1080i.01000_searchweb.png (320x180) [65.7 KB] || SolarSystemOverview.oblique.inner.labels.clockSlate_EarthTarget.HD1080i.01000_thm.png (80x40) [3.1 KB] || InnerSolarSystem.oblique.labels (1920x1080) [0 Item(s)] || InnerSolarSystem.oblique.nolabels (1920x1080) [0 Item(s)] || SolarSystemOverview.oblique.inner.labels.HD1080i_p30.mp4 (1920x1080) [61.3 MB] || SolarSystemOverview.oblique.inner.nolabels.HD1080i_p30.mp4 (1920x1080) [59.3 MB] || SolarSystemOverview.oblique.inner.labels.HD1080i_p30.webm (1920x1080) [14.3 MB] || SolarSystemOverview.oblique.inner.nolabels.HD1080i_p30.webm (1920x1080) [14.0 MB] || InnerSolarSystem.oblique.labels (3840x2160) [0 Item(s)] || InnerSolarSystem.oblique.nolabels (3840x2160) [0 Item(s)] || SolarSystemOverview.oblique.inner.nolabels_2160p30.mp4 (3840x2160) [171.5 MB] || SolarSystemOverview.oblique.inner.labels_2160p30.mp4 (3840x2160) [174.9 MB] || SolarSystemOverview.oblique.inner.nolabels.HD1080i_p30.mp4.hwshow [220 bytes] || ",
            "hits": 1869
        },
        {
            "id": 4795,
            "url": "https://svs.gsfc.nasa.gov/4795/",
            "result_type": "Animation",
            "release_date": "2020-02-26T16:00:00-05:00",
            "title": "OSIRIS-REx – Global Model of Asteroid Bennu",
            "description": "Looping animation of asteroid Bennu rotating. This 3D model of Bennu was created using 20cm resolution laser altimetry data and imagery taken by OSIRIS-REx. || Bennu_spin_full_20cm.1000_print.jpg (1024x576) [82.7 KB] || Bennu_spin_full_20cm.1000_searchweb.png (320x180) [17.4 KB] || Bennu_spin_full_20cm.1000_thm.png (80x40) [1.5 KB] || Bennu_spin_full_20cm_1080p30.webm (1920x1080) [14.4 MB] || Bennu_spin_full_20cm_1080p30.mp4 (1920x1080) [111.9 MB] || Bennu_GlobalSpin_20cm (3840x2160) [0 Item(s)] || Bennu_spin_full_20cm_2160p30.mp4 (3840x2160) [351.8 MB] || 4771_20cm_Bennu_Global_Spin.mov (3840x2160) [8.1 GB] || Bennu_spin_full_20cm_1080p30.mp4.hwshow [194 bytes] || ",
            "hits": 109
        },
        {
            "id": 4779,
            "url": "https://svs.gsfc.nasa.gov/4779/",
            "result_type": "Visualization",
            "release_date": "2020-01-23T09:00:00-05:00",
            "title": "Orbital Differences Between Earth and Proxima Centauri b",
            "description": "This data visualization compares the relative distances and speeds of Proxima B's orbit to the Earth's orbit. Proxima B rapidly orbits its sun every 11.2 days. || evb_orbits_comp.0333_print.jpg (1024x576) [78.7 KB] || evb_orbits_comp.0333_searchweb.png (320x180) [48.9 KB] || evb_orbits_comp.0333_thm.png (80x40) [4.7 KB] || evb_orbits_comp_1080p30.mp4 (1920x1080) [5.3 MB] || Composite (1920x1080) [0 Item(s)] || evb_orbits_comp_1080p30.webm (1920x1080) [1.8 MB] || ",
            "hits": 846
        },
        {
            "id": 4771,
            "url": "https://svs.gsfc.nasa.gov/4771/",
            "result_type": "Animation",
            "release_date": "2019-12-12T13:15:00-05:00",
            "title": "OSIRIS-REx – Asteroid Bennu Sample Site Flyovers",
            "description": "Global view of asteroid Bennu with insets of the four candidate sample collection sites. This animation is available in Hyperwall resolution (5760x3240).This video is also available on our YouTube channel. || bennu_sites_agu_4k_04_0750_print.jpg (1024x576) [155.8 KB] || bennu_sites_agu_4k_04_0750_searchweb.png (320x180) [64.4 KB] || bennu_sites_agu_4k_04_0750_thm.png (80x40) [5.1 KB] || bennu_sites_1080p30.mp4 (1920x1080) [82.9 MB] || bennu_sites_1080p30.webm (1920x1080) [9.3 MB] || Bennu_SampleSites (5760x3240) [0 Item(s)] || Bennu_SampleSites (3840x2160) [0 Item(s)] || captions_silent.28627.en_US.srt [43 bytes] || bennu_sites_2160p30.mp4 (3840x2160) [218.3 MB] || 4771_Bennu_Sites_3D_Clean.mov (3840x2160) [4.9 GB] || bennu_sites_1080p30.mp4.hwshow [185 bytes] || ",
            "hits": 130
        },
        {
            "id": 4719,
            "url": "https://svs.gsfc.nasa.gov/4719/",
            "result_type": "Visualization",
            "release_date": "2019-10-21T10:00:00-04:00",
            "title": "Lucy mission trajectory",
            "description": "Jupiter's swarms of Trojan asteroids may be remnants of the primordial material that formed the outer planets, and serve as time capsules from the birth of our Solar System more than 4 billion years ago. The Trojans orbit in two loose groups that orbit the Sun, with one group always ahead of Jupiter in its path, the other always behind. At these two Lagrange points the bodies are stabilized by the Sun and Jupiter in a gravitational balancing act.  These primitive bodies hold vital clues to deciphering the history of the solar system, and perhaps even the origins of life and organic material on Earth.Lucy will be the first space mission to study the Trojans. The mission takes its name from the fossilized human ancestor (called “Lucy” by her discoverers) whose skeleton provided unique insight into humanity's evolution. Likewise, the Lucy mission will revolutionize our knowledge of planetary origins and the formation of the solar system.Lucy will launch in October 2021 and, with boosts from Earth's gravity, will complete a twelve-year journey to eight different asteroids — a Main Belt asteroid and seven Jupiter Trojans, the last two members of a “two-for-the-price-of-one” binary system. Lucy’s complex path will take it to both clusters of Trojans and give us our first close-up view of all three major types of bodies in the swarms (so-called C-, P- and D-types). || ",
            "hits": 181
        },
        {
            "id": 4744,
            "url": "https://svs.gsfc.nasa.gov/4744/",
            "result_type": "Animation",
            "release_date": "2019-08-12T14:00:00-04:00",
            "title": "OSIRIS-REx - Asteroid Bennu Sample Site Finalists",
            "description": "The visualization begins with a rotating 3D model representation of the asteroid Bennu, created using data from the OSIRIS-REx Laser Altimeter (OLA) instrument.  Four candidate sample sites (with labels) are highlighted with PolyCam images.Watch this video on the NASA Goddard YouTube channel. || bennu_callouts_05_labels_4k_60fps_1349_print.jpg (1024x576) [149.3 KB] || bennu_callouts_05_labels_4k_60fps_1349_thm.png (80x40) [5.6 KB] || bennu_callouts_05_labels_4k_60fps_1349_print_searchweb.png (320x180) [56.8 KB] || bennu_callouts_05_labels_4k_60fps_1080p60.mp4 (1920x1080) [30.4 MB] || bennu_callouts_05_labels_4k_60fps_1080p60.webm (1920x1080) [4.3 MB] || Bennu_SampleSiteCallouts_wLabels (3840x2160) [0 Item(s)] || bennu_callouts_05_labels_4k_60fps_2160p30.mp4 (3840x2160) [70.5 MB] || 4744_Bennu_4_Sites_Output.en_US.srt [47 bytes] || 4744_Bennu_4_Sites_Output.en_US.vtt [60 bytes] || 4744_Bennu_4_Candidate_Sites.mov (3840x2160) [3.1 GB] || bennu_callouts.hwshow [68 bytes] || ",
            "hits": 59
        },
        {
            "id": 13207,
            "url": "https://svs.gsfc.nasa.gov/13207/",
            "result_type": "Produced Video",
            "release_date": "2019-07-12T10:00:00-04:00",
            "title": "OSIRIS-REx Social Media Interviews",
            "description": "This page contains interviews with personnel from the Origins, Spectral Interpretation, Resource Identification, Security-Regolith Explorer (OSIRIS-REx) mission, edited for social media. The OSIRIS-REx spacecraft launched Sept. 8, 2016, and began orbiting asteroid Bennu on Dec. 31, 2018. Its primary science objective is to study Bennu and collect a sample for return to Earth in 2023. Bennu is a carbon-rich asteroid that records the earliest history of our solar system, and which may contain the raw ingredients of life. || ",
            "hits": 30
        },
        {
            "id": 13123,
            "url": "https://svs.gsfc.nasa.gov/13123/",
            "result_type": "Produced Video",
            "release_date": "2018-12-31T14:00:00-05:00",
            "title": "Bennu Orbit Insertion",
            "description": "On December 31, 2018, OSIRIS-REx completed its Preliminary Survey of asteroid Bennu and entered into orbit.  Complete transcript available.Music provided by Killer Tracks: Pose dans la tess (instrumental), Ties that BindWatch this video on the  OSIRIS-REx mission YouTube channel. || OSIRIS-REx_Bennu_Insertion_Preview_print.jpg (1024x576) [72.3 KB] || OSIRIS-REx_Bennu_Insertion_Preview.png (3840x2160) [4.8 MB] || OSIRIS-REx_Bennu_Insertion_Preview_searchweb.png (320x180) [44.8 KB] || OSIRIS-REx_Bennu_Insertion_Preview_thm.png (80x40) [2.0 KB] || 13123_Bennu_Orbit_Insertion_MASTER.mov (3840x2160) [4.9 GB] || 13123_Bennu_Orbit_Insertion_MASTER.mp4 (3840x2160) [1.2 GB] || 13123_Bennu_Orbit_Insertion_MASTER_small.mp4 (3840x2160) [103.1 MB] || 13123_Bennu_Orbit_Insertion_MASTER.webm (3840x2160) [22.8 MB] || 13123_Bennu_Orbit_Insertion_MASTER_small_Output.en_US.srt [2.2 KB] || 13123_Bennu_Orbit_Insertion_MASTER_small_Output.en_US.vtt [2.2 KB] || ",
            "hits": 42
        },
        {
            "id": 12674,
            "url": "https://svs.gsfc.nasa.gov/12674/",
            "result_type": "Produced Video",
            "release_date": "2017-07-17T13:00:00-04:00",
            "title": "Eclipse Background",
            "description": "Eclipses, whether solar or lunar, occur because of the periodic alignments of the sun, Earth, and moon. These three bodies, orbit in space in very predictable paths (yes, the sun orbits too. It orbits the galaxy once every 200 million years!). Ever since the days of Kepler and Newton, we have been able to predict the motion of planetary bodies with great precision. So, why do eclipses happen?Solar eclipses happen when the moon moves between Earth and the sun. You might think that this should happen every month since the moon’s orbit, depending on how it is defined is between about 27 and 29 days long. But our moon’s orbit is tilted with respect to Earth’s orbit around the sun by about five degrees. Not much, you say? Yes, but the moon, itself, is only about ½ degree in width in the sky, about ½ the width of your pinky finger held at arm’s length. So, sometimes the moon misses too high and sometimes too low to cause a solar eclipse. Only when the sun, moon, and Earth line up close to the “line of nodes”, the imaginary line that represents the intersection of the orbital planes of the moon and Earth, can you have an eclipse.This is true for both solar and lunar eclipses. This situation is somewhat unique as no other moon in the solar system orbits roughly in the plane of the “ecliptic”,  Earth’s orbital plane, that the planets more or less follow. || ",
            "hits": 150
        },
        {
            "id": 4482,
            "url": "https://svs.gsfc.nasa.gov/4482/",
            "result_type": "Animation",
            "release_date": "2016-10-04T00:00:00-04:00",
            "title": "OSIRIS-REx orbits, maneuvers, and mapping",
            "description": "The Origins Spectral Interpretation Resource Identification Security - Regolith Explorer spacecraft will travel to a near-Earth asteroid, called Bennu (formerly 1999 RQ36), and bring at least a 2.1-ounce sample back to Earth for study. The mission will help scientists investigate how planets formed and how life began, as well as improve our understanding of asteroids that could impact Earth.OSIRIS-REx launched on Sept. 8, 2016, at 7:05 p.m. EDT. As planned, the spacecraft will reach its target asteroid in 2018 and return a sample to Earth in 2023. These animations depict the journey of OSIRIS-REx to Bennu and back, including the complex maneuvers that the spacecraft will perform in the asteroid's low-gravity environment. The animations are presented in chronological order. || ",
            "hits": 209
        },
        {
            "id": 11714,
            "url": "https://svs.gsfc.nasa.gov/11714/",
            "result_type": "Produced Video",
            "release_date": "2014-10-17T06:00:00-04:00",
            "title": "Observing Comet Siding Spring at Mars",
            "description": "On October 19, 2014, Comet Siding Spring will make a remarkably close encounter with Mars, buzzing the Red Planet at just one third of the Earth-Moon distance. To witness this historic event, NASA has mobilized an entire fleet of rovers, orbiters, Earth observatories and space telescopes.For complete transcript, click here.Watch this video on the NASAexplorer YouTube channel. || Comet_SS_from_Mars.png (1920x1080) [2.4 MB] || Comet_SS_from_Mars_thm.png (80x40) [7.3 KB] || Comet_SS_from_Mars_web.png (320x180) [70.0 KB] || Comet_SS_from_Mars_searchweb.png (320x180) [70.0 KB] || G2014-091_Comet_SS_MASTER_appletv.m4v (960x540) [75.9 MB] || G2014-091_Comet_SS_MASTER_appletv_subtitles.m4v (960x540) [75.9 MB] || G2014-091_Comet_SS_MASTER_appletv.webm (960x540) [20.4 MB] || G2014-091_Comet_SS_MASTER_1280x720.wmv (1280x720) [87.6 MB] || G2014-091_Comet_SS_MASTER_nasaportal.mov (640x360) [74.4 MB] || G2014-091_Comet_SS_MASTER_youtube_hq.en_US.vtt [2.9 KB] || G2014-091_Comet_SS_MASTER_youtube_hq.en_US.srt [2.8 KB] || G2014-091_Comet_SS_MASTER_ipod_lg.m4v (640x360) [30.2 MB] || G2014-091_Comet_SS_MASTER_ipod_sm.mp4 (320x240) [16.3 MB] || G2014-091_Comet_SS_MASTER_H264.mov (1920x1080) [2.4 GB] || G2014-091_Comet_SS_MASTER_prores.mov (1280x720) [2.5 GB] || G2014-091_Comet_SS_MASTER_youtube_hq.mov (1920x1080) [230.1 MB] || G2014-091_Comet_SS_MASTER.mov (1920x1080) [7.6 GB] || ",
            "hits": 50
        },
        {
            "id": 4222,
            "url": "https://svs.gsfc.nasa.gov/4222/",
            "result_type": "Visualization",
            "release_date": "2014-10-16T11:00:00-04:00",
            "title": "Sun view of Comet Siding Spring and the Mars orbiting fleet",
            "description": "This visualization shows active spacecraft orbiting Mars and their relationship to Comet Siding Spring.   The comet passes  very close to Mars on  October 19, 2014.  The camera is looking from the direction of the Sun towards Mars.  The camera is fixed to Mars and the orbit trail of Mars goes off to the right.As Comet Siding-Spring makes its way through the Martian neighborhood it reaches the closest distance at about 18:32 UT.   Debris left by the comet follows behind the comet on the line representing where the comet was.  This derbis impacts Mars at about 20:08 UT.    Scientists and engineers are concerned that the derbis may harm the spacecraft.  Several of the spacecraft have executed orbital maneuvers to put them on the opposite side of Mars when the debris impacts. || ",
            "hits": 24
        },
        {
            "id": 4192,
            "url": "https://svs.gsfc.nasa.gov/4192/",
            "result_type": "Visualization",
            "release_date": "2014-10-09T14:00:00-04:00",
            "title": "Mars Fleet and Comet Siding Spring",
            "description": "This visualization shows NASA’s fleet of Mars orbiters, landers, and rovers during the planet’s close encounter with Comet Siding Spring. C/2013 A1, better known as Comet Siding Spring, will make a remarkably close pass of Mars on October 19, 2014. At closest approach, Comet Siding Spring will come within 82,000 miles of the Red Planet – just one-third of the distance from the Earth to the Moon. During the flyby, NASA will position its Mars fleet both to protect it from comet dust, and to make observations of the comet and its effects on the upper atmosphere of Mars. || ",
            "hits": 56
        },
        {
            "id": 4212,
            "url": "https://svs.gsfc.nasa.gov/4212/",
            "result_type": "Visualization",
            "release_date": "2014-09-30T15:00:00-04:00",
            "title": "Comet Siding Spring wide shots",
            "description": "These visualizations show MAVEN and Comet Siding Spring making their way through the solar system to a close encounter near Mars. Two wide angle views are included. The first one maintains a fixed camera above the ecliptic plane of the solar system. The second one moves the camera in a bit closer and more parallel with the ecliptic plane as the comet and MAVEN encounter the Martian region. || ",
            "hits": 26
        },
        {
            "id": 4176,
            "url": "https://svs.gsfc.nasa.gov/4176/",
            "result_type": "Visualization",
            "release_date": "2014-09-04T12:00:00-04:00",
            "title": "MAVEN: Cruise Phase",
            "description": "The Mars Atmosphere and Volatile Evolution mission (MAVEN) spacecraft was launched on a 10 month journey to Mars on November 18, 2013.  MAVEN is expected to arrive in Mars orbit on Sept 21, 2014 EDT.   MAVEN's mission is to investigate the upper atmosphere of Mars and its interactions with the Sun and solar wind.  This will help scientists understand why Mars lost many volatile molecules form its atmosphere such as CO2, N2, and H2O.These visualizations show the path has taken from Earth to Mars.  There is a wide view from above the ecliptic plane and a view that slowly tilts down to about 45 degrees above the ecliptic plane. || ",
            "hits": 106
        },
        {
            "id": 4181,
            "url": "https://svs.gsfc.nasa.gov/4181/",
            "result_type": "Visualization",
            "release_date": "2014-09-04T12:00:00-04:00",
            "title": "MAVEN: Insertion Orbit",
            "description": "The Mars Atmosphere and Volatile Evolution mission (MAVEN) spacecraft was launched on a 10 month journey to Mars on November 18, 2013. MAVEN is expected to arrive in Mars orbit on Sept 21, 2014 EDT. MAVEN's mission is to investigate the upper atmosphere of Mars and its interactions with the Sun and solar wind. This will help scientists understand why Mars lost many volatile molecules form its atmosphere such as CO2, N2, and H2O.This visualization shows MAVEN's approach and orbit insertion around Mars.   MAVEN's initial orbit is highly elliptical.  The tail behind MAVEN changes to red to indicate the period during which thrusters are fired for orbit insertion.  A separate visualization shows the transition from the insertion orbit to the more circular science orbit. || ",
            "hits": 38
        },
        {
            "id": 4190,
            "url": "https://svs.gsfc.nasa.gov/4190/",
            "result_type": "Visualization",
            "release_date": "2014-09-04T12:00:00-04:00",
            "title": "MAVEN: Science Orbit",
            "description": "This visualization shows how the MAVEN spacecraft orbit changes as it progresses from the initial, highly elliptical entry orbit to a somewhat less elliptical orbit and finally to the science orbit. || ",
            "hits": 130
        },
        {
            "id": 11636,
            "url": "https://svs.gsfc.nasa.gov/11636/",
            "result_type": "Produced Video",
            "release_date": "2014-09-04T12:00:00-04:00",
            "title": "Targeting Mars",
            "description": "If you want to send a spacecraft from Earth to Mars, how would you get it there? You can't aim straight at the Red Planet, because it's moving around the Sun significantly slower than the Earth. Instead, you'll have to wait for up to 26 months for a launch window, then carefully aim at a moving target. In November, 2013, the controllers of NASA's MAVEN (Mars Atmosphere and Volatile EvolutioN) spacecraft did just that. When MAVEN arrives, it will be the first spacecraft to study Mars's upper atmosphere in detail, helping scientists understand how Mars changed from a wet planet early in its history to the cold, dry world we see today. || ",
            "hits": 72
        },
        {
            "id": 4161,
            "url": "https://svs.gsfc.nasa.gov/4161/",
            "result_type": "Visualization",
            "release_date": "2014-04-14T09:00:00-04:00",
            "title": "ISEE-3 (ICE) Revisits Earth",
            "description": "ISEE-3 (International Sun-Earth Explorer) was a mission launched in 1978 and was the first spacecraft to orbit the Earth-Sun L1 (Wikipedia: Lagrange) point.Its primary mission complete, it was renamed the International Cometary Explorer (ICE) and its orbit was altered to measure the electrodynamic environments of comets Giacobini-Zinner and Halley (Wikipedia).  It subsequently entered a solar orbit which sent it inside and outside the orbit of the Earth.In mid-2014, its current orbit will have ICE pass close to the Earth. || ",
            "hits": 40
        },
        {
            "id": 4068,
            "url": "https://svs.gsfc.nasa.gov/4068/",
            "result_type": "Visualization",
            "release_date": "2013-05-31T00:00:00-04:00",
            "title": "Earth and Moon",
            "description": "A simple visualization of Moon orbiting Earth in a view from the north ecliptic pole.There are two versions. The standard version has Earth and Moon at the proper scale in relation to their orbit. The oversize version has Earth and Moon five times larger.The animation run corresponds to a time of three months. The camera orientation is fixed in space (relative to the distant stars) so the stars do not move but we see the changing direction of the Sun based on the lit hemisphere of Earth and Moon. || ",
            "hits": 2049
        },
        {
            "id": 4017,
            "url": "https://svs.gsfc.nasa.gov/4017/",
            "result_type": "Visualization",
            "release_date": "2013-03-29T11:00:00-04:00",
            "title": "Comet ISON Approaches Perihelion",
            "description": "Currently located beyond the orbit of Jupiter, Comet ISON is heading for a very close encounter with the sun next year. In November 2013, it will pass less than 0.012 Astronomical Units (Wikipedia) (1.8 million kilometers) from the center of the Sun, 1.2 million kilometers from the solar surface. The fierce heating it experiences in that approach could turn the comet into a bright naked-eye object.NOTE: This visualization was revised in March 2013 to fix an ephemeris error. Other enhancements were included in the revision.  Also fixed an error where perihelion distance was mistakenly labeled as distance from solar surface. || ",
            "hits": 56
        },
        {
            "id": 3993,
            "url": "https://svs.gsfc.nasa.gov/3993/",
            "result_type": "Visualization",
            "release_date": "2012-09-20T00:00:00-04:00",
            "title": "STEREO's Ongoing Mission to See the Sun from All Sides",
            "description": "In 2012, the two STEREO spacecraft, Ahead (STEREO-A) and Behind (STEREO-B) continue on their orbits around the Sun. For the next several years, the spacecraft will be positioned to observe the side of the Sun not visible from the Earth. || ",
            "hits": 33
        },
        {
            "id": 3995,
            "url": "https://svs.gsfc.nasa.gov/3995/",
            "result_type": "Visualization",
            "release_date": "2012-09-20T00:00:00-04:00",
            "title": "The Heliophysics Fleet at Lagrange Point 1",
            "description": "NASA and ESA operate a fleet of heliophysics satellites at the 'balance point' between the Earth and the Sun, known as Lagrange Point 1, or L1. SOHO, ACE, and Wind have been operating at this point for over 15 years (see SOHO @ 15, ACE @ 15). || ",
            "hits": 56
        },
        {
            "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": 94
        },
        {
            "id": 3891,
            "url": "https://svs.gsfc.nasa.gov/3891/",
            "result_type": "Visualization",
            "release_date": "2011-12-05T00:00:00-05:00",
            "title": "Global Precipitation Measurement (GPM) Orbital Fleet",
            "description": "GPM will be an international fleet of satellites that provide global observations of rain and snow. Based on the Tropical Rainfall Measuring Mission (TRMM), GPM will consist of a core spacecraft that includes radar and radiometers that will provide reference standards to unify the other observations made by the rest of the fleet. More information on GPMis available.This visualization is the first of three designed to illustrate some aspects of the GPM mission. This one shows the GPM spacecraft fleet orbiting the Earth. This version is capable of being shown on a hyperwall that is a set of tiled displays. || ",
            "hits": 27
        },
        {
            "id": 3042,
            "url": "https://svs.gsfc.nasa.gov/3042/",
            "result_type": "Visualization",
            "release_date": "2004-11-01T12:00:00-05:00",
            "title": "Lunar Beauty Shot",
            "description": "This is a beauty shot animation flying over the surface of the moon created in support of a series of live interviews about the 2004 lunar eclipse.Scales are not accurate in this visualization.  The Earth is about 3 times larger than it would actually appear.  The source of the moon texture is unknown; it is thought to be a composite from several missions.  The Earth texture was captured as the Galileo spacecraft swung by the Earth in 1990 for a gravity assist on its way to Jupiter. || ",
            "hits": 33
        }
    ]
}