{
    "id": 11676,
    "url": "https://svs.gsfc.nasa.gov/11676/",
    "page_type": "Produced Video",
    "title": "Comet Encounter",
    "description": "On October 19, 2014, Comet Siding Spring had a remarkably close encounter with Mars, buzzing the Red Planet at just one-third the distance from Earth to the moon. The comet hails from far beyond Pluto's orbit, originating in a region of icy debris known as the Oort cloud. Comets from the Oort cloud are both ancient and rare. Such comets were born during the formation of our solar system and are older than Earth itself. As Comet Siding Spring passed by Mars, it left behind a trail of gas and dust. Using space and ground-based telescopes, along with NASA’s fleet of Mars orbiters and rovers, scientists will study the composition of the comet and the effects of its gas and dust on the Martian atmosphere. Watch the video to learn more. || ",
    "release_date": "2014-10-23T11:45:00-04:00",
    "update_date": "2023-05-03T13:50:24.010360-04:00",
    "main_image": {
        "id": 450038,
        "url": "https://svs.gsfc.nasa.gov/vis/a010000/a011600/a011676/c-1024_print.jpg",
        "filename": "c-1024_print.jpg",
        "media_type": "Image",
        "alt_text": "An icy visitor drops by Mars.",
        "width": 1024,
        "height": 576,
        "pixels": 589824
    },
    "main_video": {
        "id": 450048,
        "url": "https://svs.gsfc.nasa.gov/vis/a010000/a011600/a011676/11714-540-MASTER_high.mp4",
        "filename": "11714-540-MASTER_high.mp4",
        "media_type": "Movie",
        "alt_text": "Astronomers at Australia’s Siding Spring Observatory discovered the comet in \rJanuary 2013. Find out more in this video.",
        "width": 960,
        "height": 540,
        "pixels": 518400
    },
    "main_credits": {
        "Scientific consulting by": [
            {
                "name": "Kelly Fast",
                "employer": "NASA/HQ"
            },
            {
                "name": "Bruce Jakosky",
                "employer": "LASP"
            },
            {
                "name": "David Folta",
                "employer": "NASA/GSFC"
            }
        ],
        "Written by": [
            {
                "name": "Dan Gallagher",
                "employer": "USRA"
            }
        ]
    },
    "progress": "Complete",
    "media_groups": [
        {
            "id": 339867,
            "url": "https://svs.gsfc.nasa.gov/11676/#media_group_339867",
            "widget": "Basic text with HTML",
            "title": "",
            "caption": "",
            "description": "On October 19, 2014, Comet Siding Spring had a remarkably close encounter with Mars, buzzing the Red Planet at just one-third the distance from Earth to the moon. The comet hails from far beyond Pluto's orbit, originating in a region of icy debris known as the Oort cloud. Comets from the Oort cloud are both ancient and rare. Such comets were born during the formation of our solar system and are older than Earth itself. As Comet Siding Spring passed by Mars, it left behind a trail of gas and dust. Using space and ground-based telescopes, along with NASA’s fleet of Mars orbiters and rovers, scientists will study the composition of the comet and the effects of its gas and dust on the Martian atmosphere. Watch the video to learn more.",
            "items": [],
            "extra_data": {}
        },
        {
            "id": 339868,
            "url": "https://svs.gsfc.nasa.gov/11676/#media_group_339868",
            "widget": "Single image",
            "title": "",
            "caption": "",
            "description": "An icy visitor drops by Mars.",
            "items": [
                {
                    "id": 287840,
                    "type": "media",
                    "extra_data": null,
                    "title": null,
                    "caption": null,
                    "instance": {
                        "id": 450042,
                        "url": "https://svs.gsfc.nasa.gov/vis/a010000/a011600/a011676/c-1024.jpg",
                        "filename": "c-1024.jpg",
                        "media_type": "Image",
                        "alt_text": "An icy visitor drops by Mars.",
                        "width": 1024,
                        "height": 576,
                        "pixels": 589824
                    }
                },
                {
                    "id": 287841,
                    "type": "media",
                    "extra_data": null,
                    "title": null,
                    "caption": null,
                    "instance": {
                        "id": 450043,
                        "url": "https://svs.gsfc.nasa.gov/vis/a010000/a011600/a011676/c-1280.jpg",
                        "filename": "c-1280.jpg",
                        "media_type": "Image",
                        "alt_text": "An icy visitor drops by Mars.",
                        "width": 1280,
                        "height": 720,
                        "pixels": 921600
                    }
                },
                {
                    "id": 287842,
                    "type": "media",
                    "extra_data": null,
                    "title": null,
                    "caption": null,
                    "instance": {
                        "id": 450038,
                        "url": "https://svs.gsfc.nasa.gov/vis/a010000/a011600/a011676/c-1024_print.jpg",
                        "filename": "c-1024_print.jpg",
                        "media_type": "Image",
                        "alt_text": "An icy visitor drops by Mars.",
                        "width": 1024,
                        "height": 576,
                        "pixels": 589824
                    }
                },
                {
                    "id": 287843,
                    "type": "media",
                    "extra_data": null,
                    "title": null,
                    "caption": null,
                    "instance": {
                        "id": 450039,
                        "url": "https://svs.gsfc.nasa.gov/vis/a010000/a011600/a011676/c-1024_searchweb.png",
                        "filename": "c-1024_searchweb.png",
                        "media_type": "Image",
                        "alt_text": "An icy visitor drops by Mars.",
                        "width": 320,
                        "height": 180,
                        "pixels": 57600
                    }
                },
                {
                    "id": 287844,
                    "type": "media",
                    "extra_data": null,
                    "title": null,
                    "caption": null,
                    "instance": {
                        "id": 450040,
                        "url": "https://svs.gsfc.nasa.gov/vis/a010000/a011600/a011676/c-1024_web.png",
                        "filename": "c-1024_web.png",
                        "media_type": "Image",
                        "alt_text": "An icy visitor drops by Mars.",
                        "width": 320,
                        "height": 180,
                        "pixels": 57600
                    }
                },
                {
                    "id": 287845,
                    "type": "media",
                    "extra_data": null,
                    "title": null,
                    "caption": null,
                    "instance": {
                        "id": 450041,
                        "url": "https://svs.gsfc.nasa.gov/vis/a010000/a011600/a011676/c-1024_thm.png",
                        "filename": "c-1024_thm.png",
                        "media_type": "Image",
                        "alt_text": "An icy visitor drops by Mars.",
                        "width": 80,
                        "height": 40,
                        "pixels": 3200
                    }
                }
            ],
            "extra_data": {}
        },
        {
            "id": 339869,
            "url": "https://svs.gsfc.nasa.gov/11676/#media_group_339869",
            "widget": "Video player",
            "title": "",
            "caption": "",
            "description": "Astronomers at Australia’s Siding Spring Observatory discovered the comet in \rJanuary 2013. Find out more in this video.",
            "items": [
                {
                    "id": 287848,
                    "type": "media",
                    "extra_data": null,
                    "title": null,
                    "caption": null,
                    "instance": {
                        "id": 450045,
                        "url": "https://svs.gsfc.nasa.gov/vis/a010000/a011600/a011676/pf-1024.jpg",
                        "filename": "pf-1024.jpg",
                        "media_type": "Image",
                        "alt_text": "Astronomers at Australia’s Siding Spring Observatory discovered the comet in \rJanuary 2013. Find out more in this video.",
                        "width": 1024,
                        "height": 576,
                        "pixels": 589824
                    }
                },
                {
                    "id": 287849,
                    "type": "media",
                    "extra_data": null,
                    "title": null,
                    "caption": null,
                    "instance": {
                        "id": 450044,
                        "url": "https://svs.gsfc.nasa.gov/vis/a010000/a011600/a011676/pf-1280.jpg",
                        "filename": "pf-1280.jpg",
                        "media_type": "Image",
                        "alt_text": "Astronomers at Australia’s Siding Spring Observatory discovered the comet in \rJanuary 2013. Find out more in this video.",
                        "width": 1280,
                        "height": 720,
                        "pixels": 921600
                    }
                },
                {
                    "id": 287850,
                    "type": "media",
                    "extra_data": null,
                    "title": null,
                    "caption": null,
                    "instance": {
                        "id": 450046,
                        "url": "https://svs.gsfc.nasa.gov/vis/a010000/a011600/a011676/pf-1024_print.jpg",
                        "filename": "pf-1024_print.jpg",
                        "media_type": "Image",
                        "alt_text": "Astronomers at Australia’s Siding Spring Observatory discovered the comet in \rJanuary 2013. Find out more in this video.",
                        "width": 1024,
                        "height": 576,
                        "pixels": 589824
                    }
                },
                {
                    "id": 287847,
                    "type": "media",
                    "extra_data": null,
                    "title": null,
                    "caption": null,
                    "instance": {
                        "id": 450048,
                        "url": "https://svs.gsfc.nasa.gov/vis/a010000/a011600/a011676/11714-540-MASTER_high.mp4",
                        "filename": "11714-540-MASTER_high.mp4",
                        "media_type": "Movie",
                        "alt_text": "Astronomers at Australia’s Siding Spring Observatory discovered the comet in \rJanuary 2013. Find out more in this video.",
                        "width": 960,
                        "height": 540,
                        "pixels": 518400
                    }
                },
                {
                    "id": 287851,
                    "type": "media",
                    "extra_data": null,
                    "title": null,
                    "caption": null,
                    "instance": {
                        "id": 450049,
                        "url": "https://svs.gsfc.nasa.gov/vis/a010000/a011600/a011676/11714-540-MASTER_high.webmhd.webm",
                        "filename": "11714-540-MASTER_high.webmhd.webm",
                        "media_type": "Movie",
                        "alt_text": "Astronomers at Australia’s Siding Spring Observatory discovered the comet in \rJanuary 2013. Find out more in this video.",
                        "width": 960,
                        "height": 540,
                        "pixels": 518400
                    }
                },
                {
                    "id": 287846,
                    "type": "media",
                    "extra_data": null,
                    "title": null,
                    "caption": null,
                    "instance": {
                        "id": 853068,
                        "url": "https://svs.gsfc.nasa.gov/vis/a010000/a011600/a011676/a011676_iPad_movie_11714-540-MASTER/11714-540-MASTER.m3u8",
                        "filename": "11714-540-MASTER.m3u8",
                        "media_type": "File",
                        "alt_text": "Astronomers at Australia’s Siding Spring Observatory discovered the comet in \rJanuary 2013. Find out more in this video."
                    }
                }
            ],
            "extra_data": {}
        },
        {
            "id": 339870,
            "url": "https://svs.gsfc.nasa.gov/11676/#media_group_339870",
            "widget": "Single image",
            "title": "",
            "caption": "",
            "description": "This image of Comet Siding Spring was taken in March 2014.",
            "items": [
                {
                    "id": 287852,
                    "type": "media",
                    "extra_data": null,
                    "title": null,
                    "caption": null,
                    "instance": {
                        "id": 450052,
                        "url": "https://svs.gsfc.nasa.gov/vis/a010000/a011600/a011676/s1-1024.jpg",
                        "filename": "s1-1024.jpg",
                        "media_type": "Image",
                        "alt_text": "This image of Comet Siding Spring was taken in March 2014.",
                        "width": 1024,
                        "height": 576,
                        "pixels": 589824
                    }
                },
                {
                    "id": 287853,
                    "type": "media",
                    "extra_data": null,
                    "title": null,
                    "caption": null,
                    "instance": {
                        "id": 450050,
                        "url": "https://svs.gsfc.nasa.gov/vis/a010000/a011600/a011676/s1-1024_print.jpg",
                        "filename": "s1-1024_print.jpg",
                        "media_type": "Image",
                        "alt_text": "This image of Comet Siding Spring was taken in March 2014.",
                        "width": 1024,
                        "height": 576,
                        "pixels": 589824
                    }
                },
                {
                    "id": 287854,
                    "type": "media",
                    "extra_data": null,
                    "title": null,
                    "caption": null,
                    "instance": {
                        "id": 450051,
                        "url": "https://svs.gsfc.nasa.gov/vis/a010000/a011600/a011676/s1-1024_web.png",
                        "filename": "s1-1024_web.png",
                        "media_type": "Image",
                        "alt_text": "This image of Comet Siding Spring was taken in March 2014.",
                        "width": 320,
                        "height": 180,
                        "pixels": 57600
                    }
                }
            ],
            "extra_data": {}
        },
        {
            "id": 339871,
            "url": "https://svs.gsfc.nasa.gov/11676/#media_group_339871",
            "widget": "Single image",
            "title": "",
            "caption": "",
            "description": "This illustration shows the distance of the comet to Mars at its closest approach on October 19, 2014.",
            "items": [
                {
                    "id": 287855,
                    "type": "media",
                    "extra_data": null,
                    "title": null,
                    "caption": null,
                    "instance": {
                        "id": 450055,
                        "url": "https://svs.gsfc.nasa.gov/vis/a010000/a011600/a011676/s2-1024.jpg",
                        "filename": "s2-1024.jpg",
                        "media_type": "Image",
                        "alt_text": "This illustration shows the distance of the comet to Mars at its closest approach on October 19, 2014.",
                        "width": 1024,
                        "height": 576,
                        "pixels": 589824
                    }
                },
                {
                    "id": 287856,
                    "type": "media",
                    "extra_data": null,
                    "title": null,
                    "caption": null,
                    "instance": {
                        "id": 450056,
                        "url": "https://svs.gsfc.nasa.gov/vis/a010000/a011600/a011676/s2-1280.jpg",
                        "filename": "s2-1280.jpg",
                        "media_type": "Image",
                        "alt_text": "This illustration shows the distance of the comet to Mars at its closest approach on October 19, 2014.",
                        "width": 1280,
                        "height": 720,
                        "pixels": 921600
                    }
                },
                {
                    "id": 287857,
                    "type": "media",
                    "extra_data": null,
                    "title": null,
                    "caption": null,
                    "instance": {
                        "id": 450053,
                        "url": "https://svs.gsfc.nasa.gov/vis/a010000/a011600/a011676/s2-1024_print.jpg",
                        "filename": "s2-1024_print.jpg",
                        "media_type": "Image",
                        "alt_text": "This illustration shows the distance of the comet to Mars at its closest approach on October 19, 2014.",
                        "width": 1024,
                        "height": 576,
                        "pixels": 589824
                    }
                },
                {
                    "id": 287858,
                    "type": "media",
                    "extra_data": null,
                    "title": null,
                    "caption": null,
                    "instance": {
                        "id": 450054,
                        "url": "https://svs.gsfc.nasa.gov/vis/a010000/a011600/a011676/s2-1024_web.png",
                        "filename": "s2-1024_web.png",
                        "media_type": "Image",
                        "alt_text": "This illustration shows the distance of the comet to Mars at its closest approach on October 19, 2014.",
                        "width": 320,
                        "height": 180,
                        "pixels": 57600
                    }
                }
            ],
            "extra_data": {}
        },
        {
            "id": 339872,
            "url": "https://svs.gsfc.nasa.gov/11676/#media_group_339872",
            "widget": "Single image",
            "title": "",
            "caption": "",
            "description": "Multiple NASA missions, including the Hubble Space Telescope (above), observed the comet during its Mars flyby.",
            "items": [
                {
                    "id": 287859,
                    "type": "media",
                    "extra_data": null,
                    "title": null,
                    "caption": null,
                    "instance": {
                        "id": 450059,
                        "url": "https://svs.gsfc.nasa.gov/vis/a010000/a011600/a011676/s3-1280.jpg",
                        "filename": "s3-1280.jpg",
                        "media_type": "Image",
                        "alt_text": "Multiple NASA missions, including the Hubble Space Telescope (above), observed the comet during its Mars flyby.",
                        "width": 1280,
                        "height": 720,
                        "pixels": 921600
                    }
                },
                {
                    "id": 287860,
                    "type": "media",
                    "extra_data": null,
                    "title": null,
                    "caption": null,
                    "instance": {
                        "id": 450060,
                        "url": "https://svs.gsfc.nasa.gov/vis/a010000/a011600/a011676/s3-1024.jpg",
                        "filename": "s3-1024.jpg",
                        "media_type": "Image",
                        "alt_text": "Multiple NASA missions, including the Hubble Space Telescope (above), observed the comet during its Mars flyby.",
                        "width": 1024,
                        "height": 576,
                        "pixels": 589824
                    }
                },
                {
                    "id": 287861,
                    "type": "media",
                    "extra_data": null,
                    "title": null,
                    "caption": null,
                    "instance": {
                        "id": 450057,
                        "url": "https://svs.gsfc.nasa.gov/vis/a010000/a011600/a011676/s3-1024_print.jpg",
                        "filename": "s3-1024_print.jpg",
                        "media_type": "Image",
                        "alt_text": "Multiple NASA missions, including the Hubble Space Telescope (above), observed the comet during its Mars flyby.",
                        "width": 1024,
                        "height": 576,
                        "pixels": 589824
                    }
                },
                {
                    "id": 287862,
                    "type": "media",
                    "extra_data": null,
                    "title": null,
                    "caption": null,
                    "instance": {
                        "id": 450058,
                        "url": "https://svs.gsfc.nasa.gov/vis/a010000/a011600/a011676/s3-1024_web.png",
                        "filename": "s3-1024_web.png",
                        "media_type": "Image",
                        "alt_text": "Multiple NASA missions, including the Hubble Space Telescope (above), observed the comet during its Mars flyby.",
                        "width": 320,
                        "height": 180,
                        "pixels": 57600
                    }
                }
            ],
            "extra_data": {}
        },
        {
            "id": 339873,
            "url": "https://svs.gsfc.nasa.gov/11676/#media_group_339873",
            "widget": "Basic text",
            "title": "For More Information",
            "caption": "",
            "description": "See [NASA.gov](http://mars.jpl.nasa.gov/comets/sidingspring/)",
            "items": [],
            "extra_data": {}
        }
    ],
    "studio": "gms",
    "funding_sources": [
        "PAO"
    ],
    "credits": [
        {
            "role": "Animator",
            "people": [
                {
                    "name": "Greg Shirah",
                    "employer": "NASA/GSFC"
                },
                {
                    "name": "Michael Lentz",
                    "employer": "USRA"
                },
                {
                    "name": "Walt Feimer",
                    "employer": "HTSI"
                },
                {
                    "name": "Ernie Wright",
                    "employer": "USRA"
                }
            ]
        },
        {
            "role": "Video editor",
            "people": [
                {
                    "name": "Dan Gallagher",
                    "employer": "USRA"
                }
            ]
        },
        {
            "role": "Narrator",
            "people": [
                {
                    "name": "Dan Gallagher",
                    "employer": "USRA"
                }
            ]
        },
        {
            "role": "Producer",
            "people": [
                {
                    "name": "Dan Gallagher",
                    "employer": "USRA"
                }
            ]
        },
        {
            "role": "Scientist",
            "people": [
                {
                    "name": "Kelly Fast",
                    "employer": "NASA/HQ"
                },
                {
                    "name": "Bruce Jakosky",
                    "employer": "LASP"
                },
                {
                    "name": "David Folta",
                    "employer": "NASA/GSFC"
                }
            ]
        },
        {
            "role": "Project support",
            "people": [
                {
                    "name": "Aaron E. Lepsch",
                    "employer": "ADNET Systems, Inc."
                }
            ]
        },
        {
            "role": "Writer",
            "people": [
                {
                    "name": "Dan Gallagher",
                    "employer": "USRA"
                }
            ]
        }
    ],
    "missions": [],
    "series": [],
    "tapes": [],
    "papers": [],
    "datasets": [],
    "nasa_science_categories": [
        "Planets & Moons"
    ],
    "keywords": [
        "App"
    ],
    "recommended_pages": [],
    "related": [
        {
            "id": 11714,
            "url": "https://svs.gsfc.nasa.gov/11714/",
            "page_type": "Produced Video",
            "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] || ",
            "release_date": "2014-10-17T06:00:00-04:00",
            "update_date": "2023-05-03T13:50:24.838702-04:00",
            "main_image": {
                "id": 450268,
                "url": "https://svs.gsfc.nasa.gov/vis/a010000/a011700/a011714/Comet_SS_from_Mars.png",
                "filename": "Comet_SS_from_Mars.png",
                "media_type": "Image",
                "alt_text": "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.\r",
                "width": 1920,
                "height": 1080,
                "pixels": 2073600
            }
        },
        {
            "id": 20215,
            "url": "https://svs.gsfc.nasa.gov/20215/",
            "page_type": "Animation",
            "title": "Comet Siding Spring and Mars",
            "description": "NASA's MAVEN spacecraft observes Comet Siding Spring during its encounter with Mars. || Comet_Passing_Mars_0072000702_print.jpg (1024x576) [65.5 KB] || Comet_Passing_Mars_00720_print.jpg (1024x576) [78.4 KB] || Comet_Passing_Mars_00720_searchweb.png (320x180) [56.8 KB] || Comet_Passing_Mars_00720_web.png (320x180) [56.8 KB] || Comet_Passing_Mars_00720_thm.png (80x40) [4.2 KB] || Comet_Passing_Mars_FINAL.mov (1920x1080) [1004.7 MB] || Comet_Passing_Mars_h264_FINAL.mov (1920x1080) [34.4 MB] || Comet_Passing_Mars_1080.mp4 (1920x1080) [13.7 MB] || CometPassing (1920x1080) [128.0 KB] || Comet_Passing_Mars_1080.webm (960x540) [2.1 MB] || ",
            "release_date": "2014-10-14T00:00:00-04:00",
            "update_date": "2023-05-03T13:50:26.951933-04:00",
            "main_image": {
                "id": 450556,
                "url": "https://svs.gsfc.nasa.gov/vis/a020000/a020200/a020215/Comet_Passing_Mars_00720_print.jpg",
                "filename": "Comet_Passing_Mars_00720_print.jpg",
                "media_type": "Image",
                "alt_text": "NASA's MAVEN spacecraft observes Comet Siding Spring during its encounter with Mars.",
                "width": 1024,
                "height": 576,
                "pixels": 589824
            }
        }
    ],
    "sources": [],
    "products": [],
    "newer_versions": [],
    "older_versions": [],
    "alternate_versions": []
}