{
    "id": 10510,
    "url": "https://svs.gsfc.nasa.gov/10510/",
    "page_type": "Produced Video",
    "title": "Einstein's Cosmic Speed Limit",
    "description": "In its first year of operations, NASA's Fermi Gamma-ray Space Telescope has mapped the entire sky with unprecedented resolution and sensitivity in gamma-rays, the highest-energy form of light. On May 10, 2009 a pair of gamma-ray photons reached Fermi only 900 milliseconds apart after traveling for 7 billion years. Fermi's measurement gives us rare experimental evidence that space-time is smooth as Einstein predicted, and has shut the door on several approaches to gravity where space-time is foamy enough to interfere strongly with light.Watch this video on the NASAexplorer YouTube channel.For complete transcript, click here. || Einsteins_Cosmic_Speed_Limit_512x288_web.png (320x180) [223.5 KB] || Einsteins_Cosmic_Speed_Limit_512x288_thm.png (80x40) [16.5 KB] || Einsteins_Cosmic_Speed_Limit_Thumbnail.jpg (346x260) [107.4 KB] || Einsteins_Cosmic_Speed_Limit_AppleTV.webmhd.webm (960x540) [82.4 MB] || Einsteins_Cosmic_Speed_Limit_AppleTV.m4v (960x540) [208.4 MB] || Einsteins_Cosmic_Speed_Limit_1280x720_H264.mov (1280x720) [433.5 MB] || Einsteins_Cosmic_Speed_Limit_1280x720_ProRes.mov (1280x720) [5.2 GB] || Einsteins_Cosmic_Speed_Limit_640x480_ipod.m4v (640x360) [68.6 MB] || Einsteins_Cosmic_Speed_Limit_512x288.mpg (512x288) [38.3 MB] || Einsteins_Cosmic_Speed_Limit_320x240.mp4 (320x180) [26.5 MB] || GSFC_20091029_EinsteinsCosmicSpeedLimit.wmv (346x236) [38.4 MB] || ",
    "release_date": "2009-10-28T00:00:00-04:00",
    "update_date": "2023-05-03T13:54:31.080358-04:00",
    "main_image": {
        "id": 495569,
        "url": "https://svs.gsfc.nasa.gov/vis/a010000/a010500/a010510/Einsteins_Cosmic_Speed_Limit_512x288_web.png",
        "filename": "Einsteins_Cosmic_Speed_Limit_512x288_web.png",
        "media_type": "Image",
        "alt_text": "In its first year of operations, NASA's Fermi Gamma-ray Space Telescope has mapped the entire sky with unprecedented resolution and sensitivity in gamma-rays, the highest-energy form of light. On May 10, 2009 a pair of gamma-ray photons reached Fermi only 900 milliseconds apart after traveling for 7 billion years. Fermi's measurement gives us rare experimental evidence that space-time is smooth as Einstein predicted, and has shut the door on several approaches to gravity where space-time is foamy enough to interfere strongly with light.Watch this video on the NASAexplorer YouTube channel.For complete transcript, click here.",
        "width": 320,
        "height": 180,
        "pixels": 57600
    },
    "main_video": {
        "id": 495562,
        "url": "https://svs.gsfc.nasa.gov/vis/a010000/a010500/a010510/Einsteins_Cosmic_Speed_Limit_AppleTV.webmhd.webm",
        "filename": "Einsteins_Cosmic_Speed_Limit_AppleTV.webmhd.webm",
        "media_type": "Movie",
        "alt_text": "In its first year of operations, NASA's Fermi Gamma-ray Space Telescope has mapped the entire sky with unprecedented resolution and sensitivity in gamma-rays, the highest-energy form of light. On May 10, 2009 a pair of gamma-ray photons reached Fermi only 900 milliseconds apart after traveling for 7 billion years. Fermi's measurement gives us rare experimental evidence that space-time is smooth as Einstein predicted, and has shut the door on several approaches to gravity where space-time is foamy enough to interfere strongly with light.Watch this video on the NASAexplorer YouTube channel.For complete transcript, click here.",
        "width": 960,
        "height": 540,
        "pixels": 518400
    },
    "main_credits": {
        "Visualizations by": [
            {
                "name": "Cruz deWilde",
                "employer": "Avant Gravity"
            }
        ]
    },
    "progress": "Complete",
    "media_groups": [
        {
            "id": 354050,
            "url": "https://svs.gsfc.nasa.gov/10510/#media_group_354050",
            "widget": "Video player",
            "title": "",
            "caption": "",
            "description": "In its first year of operations, NASA's Fermi Gamma-ray Space Telescope has mapped the entire sky with unprecedented resolution and sensitivity in gamma-rays, the highest-energy form of light. On May 10, 2009 a pair of gamma-ray photons reached Fermi only 900 milliseconds apart after traveling for 7 billion years. Fermi's measurement gives us rare experimental evidence that space-time is smooth as Einstein predicted, and has shut the door on several approaches to gravity where space-time is foamy enough to interfere strongly with light.<p><p><p><p><p><b>Watch this video on the <a href=\"http://www.youtube.com/watch?v=1mkKhn53L68\">NASAexplorer YouTube channel.</a></b><p><p><p>For complete transcript, click <a href=\"/vis/a010000/a010500/a010510/script_1231_00.html\">here</a>.",
            "items": [
                {
                    "id": 340251,
                    "type": "media",
                    "extra_data": null,
                    "title": null,
                    "caption": null,
                    "instance": {
                        "id": 495569,
                        "url": "https://svs.gsfc.nasa.gov/vis/a010000/a010500/a010510/Einsteins_Cosmic_Speed_Limit_512x288_web.png",
                        "filename": "Einsteins_Cosmic_Speed_Limit_512x288_web.png",
                        "media_type": "Image",
                        "alt_text": "In its first year of operations, NASA's Fermi Gamma-ray Space Telescope has mapped the entire sky with unprecedented resolution and sensitivity in gamma-rays, the highest-energy form of light. On May 10, 2009 a pair of gamma-ray photons reached Fermi only 900 milliseconds apart after traveling for 7 billion years. Fermi's measurement gives us rare experimental evidence that space-time is smooth as Einstein predicted, and has shut the door on several approaches to gravity where space-time is foamy enough to interfere strongly with light.Watch this video on the NASAexplorer YouTube channel.For complete transcript, click here.",
                        "width": 320,
                        "height": 180,
                        "pixels": 57600
                    }
                },
                {
                    "id": 340252,
                    "type": "media",
                    "extra_data": null,
                    "title": null,
                    "caption": null,
                    "instance": {
                        "id": 495570,
                        "url": "https://svs.gsfc.nasa.gov/vis/a010000/a010500/a010510/Einsteins_Cosmic_Speed_Limit_512x288_thm.png",
                        "filename": "Einsteins_Cosmic_Speed_Limit_512x288_thm.png",
                        "media_type": "Image",
                        "alt_text": "In its first year of operations, NASA's Fermi Gamma-ray Space Telescope has mapped the entire sky with unprecedented resolution and sensitivity in gamma-rays, the highest-energy form of light. On May 10, 2009 a pair of gamma-ray photons reached Fermi only 900 milliseconds apart after traveling for 7 billion years. Fermi's measurement gives us rare experimental evidence that space-time is smooth as Einstein predicted, and has shut the door on several approaches to gravity where space-time is foamy enough to interfere strongly with light.Watch this video on the NASAexplorer YouTube channel.For complete transcript, click here.",
                        "width": 80,
                        "height": 40,
                        "pixels": 3200
                    }
                },
                {
                    "id": 340253,
                    "type": "media",
                    "extra_data": null,
                    "title": null,
                    "caption": null,
                    "instance": {
                        "id": 495571,
                        "url": "https://svs.gsfc.nasa.gov/vis/a010000/a010500/a010510/Einsteins_Cosmic_Speed_Limit_Thumbnail.jpg",
                        "filename": "Einsteins_Cosmic_Speed_Limit_Thumbnail.jpg",
                        "media_type": "Image",
                        "alt_text": "In its first year of operations, NASA's Fermi Gamma-ray Space Telescope has mapped the entire sky with unprecedented resolution and sensitivity in gamma-rays, the highest-energy form of light. On May 10, 2009 a pair of gamma-ray photons reached Fermi only 900 milliseconds apart after traveling for 7 billion years. Fermi's measurement gives us rare experimental evidence that space-time is smooth as Einstein predicted, and has shut the door on several approaches to gravity where space-time is foamy enough to interfere strongly with light.Watch this video on the NASAexplorer YouTube channel.For complete transcript, click here.",
                        "width": 346,
                        "height": 260,
                        "pixels": 89960
                    }
                },
                {
                    "id": 340244,
                    "type": "media",
                    "extra_data": null,
                    "title": null,
                    "caption": null,
                    "instance": {
                        "id": 495562,
                        "url": "https://svs.gsfc.nasa.gov/vis/a010000/a010500/a010510/Einsteins_Cosmic_Speed_Limit_AppleTV.webmhd.webm",
                        "filename": "Einsteins_Cosmic_Speed_Limit_AppleTV.webmhd.webm",
                        "media_type": "Movie",
                        "alt_text": "In its first year of operations, NASA's Fermi Gamma-ray Space Telescope has mapped the entire sky with unprecedented resolution and sensitivity in gamma-rays, the highest-energy form of light. On May 10, 2009 a pair of gamma-ray photons reached Fermi only 900 milliseconds apart after traveling for 7 billion years. Fermi's measurement gives us rare experimental evidence that space-time is smooth as Einstein predicted, and has shut the door on several approaches to gravity where space-time is foamy enough to interfere strongly with light.Watch this video on the NASAexplorer YouTube channel.For complete transcript, click here.",
                        "width": 960,
                        "height": 540,
                        "pixels": 518400
                    }
                },
                {
                    "id": 340248,
                    "type": "media",
                    "extra_data": null,
                    "title": null,
                    "caption": null,
                    "instance": {
                        "id": 495566,
                        "url": "https://svs.gsfc.nasa.gov/vis/a010000/a010500/a010510/Einsteins_Cosmic_Speed_Limit_AppleTV.m4v",
                        "filename": "Einsteins_Cosmic_Speed_Limit_AppleTV.m4v",
                        "media_type": "Movie",
                        "alt_text": "In its first year of operations, NASA's Fermi Gamma-ray Space Telescope has mapped the entire sky with unprecedented resolution and sensitivity in gamma-rays, the highest-energy form of light. On May 10, 2009 a pair of gamma-ray photons reached Fermi only 900 milliseconds apart after traveling for 7 billion years. Fermi's measurement gives us rare experimental evidence that space-time is smooth as Einstein predicted, and has shut the door on several approaches to gravity where space-time is foamy enough to interfere strongly with light.Watch this video on the NASAexplorer YouTube channel.For complete transcript, click here.",
                        "width": 960,
                        "height": 540,
                        "pixels": 518400
                    }
                },
                {
                    "id": 340249,
                    "type": "media",
                    "extra_data": null,
                    "title": null,
                    "caption": null,
                    "instance": {
                        "id": 495567,
                        "url": "https://svs.gsfc.nasa.gov/vis/a010000/a010500/a010510/Einsteins_Cosmic_Speed_Limit_1280x720_H264.mov",
                        "filename": "Einsteins_Cosmic_Speed_Limit_1280x720_H264.mov",
                        "media_type": "Movie",
                        "alt_text": "In its first year of operations, NASA's Fermi Gamma-ray Space Telescope has mapped the entire sky with unprecedented resolution and sensitivity in gamma-rays, the highest-energy form of light. On May 10, 2009 a pair of gamma-ray photons reached Fermi only 900 milliseconds apart after traveling for 7 billion years. Fermi's measurement gives us rare experimental evidence that space-time is smooth as Einstein predicted, and has shut the door on several approaches to gravity where space-time is foamy enough to interfere strongly with light.Watch this video on the NASAexplorer YouTube channel.For complete transcript, click here.",
                        "width": 1280,
                        "height": 720,
                        "pixels": 921600
                    }
                },
                {
                    "id": 340254,
                    "type": "media",
                    "extra_data": null,
                    "title": null,
                    "caption": null,
                    "instance": {
                        "id": 495572,
                        "url": "https://svs.gsfc.nasa.gov/vis/a010000/a010500/a010510/Einsteins_Cosmic_Speed_Limit_1280x720_ProRes.mov",
                        "filename": "Einsteins_Cosmic_Speed_Limit_1280x720_ProRes.mov",
                        "media_type": "Movie",
                        "alt_text": "In its first year of operations, NASA's Fermi Gamma-ray Space Telescope has mapped the entire sky with unprecedented resolution and sensitivity in gamma-rays, the highest-energy form of light. On May 10, 2009 a pair of gamma-ray photons reached Fermi only 900 milliseconds apart after traveling for 7 billion years. Fermi's measurement gives us rare experimental evidence that space-time is smooth as Einstein predicted, and has shut the door on several approaches to gravity where space-time is foamy enough to interfere strongly with light.Watch this video on the NASAexplorer YouTube channel.For complete transcript, click here.",
                        "width": 1280,
                        "height": 720,
                        "pixels": 921600
                    }
                },
                {
                    "id": 340247,
                    "type": "media",
                    "extra_data": null,
                    "title": null,
                    "caption": null,
                    "instance": {
                        "id": 495565,
                        "url": "https://svs.gsfc.nasa.gov/vis/a010000/a010500/a010510/Einsteins_Cosmic_Speed_Limit_640x480_ipod.m4v",
                        "filename": "Einsteins_Cosmic_Speed_Limit_640x480_ipod.m4v",
                        "media_type": "Movie",
                        "alt_text": "In its first year of operations, NASA's Fermi Gamma-ray Space Telescope has mapped the entire sky with unprecedented resolution and sensitivity in gamma-rays, the highest-energy form of light. On May 10, 2009 a pair of gamma-ray photons reached Fermi only 900 milliseconds apart after traveling for 7 billion years. Fermi's measurement gives us rare experimental evidence that space-time is smooth as Einstein predicted, and has shut the door on several approaches to gravity where space-time is foamy enough to interfere strongly with light.Watch this video on the NASAexplorer YouTube channel.For complete transcript, click here.",
                        "width": 640,
                        "height": 360,
                        "pixels": 230400
                    }
                },
                {
                    "id": 340245,
                    "type": "media",
                    "extra_data": null,
                    "title": null,
                    "caption": null,
                    "instance": {
                        "id": 495563,
                        "url": "https://svs.gsfc.nasa.gov/vis/a010000/a010500/a010510/Einsteins_Cosmic_Speed_Limit_512x288.mpg",
                        "filename": "Einsteins_Cosmic_Speed_Limit_512x288.mpg",
                        "media_type": "Movie",
                        "alt_text": "In its first year of operations, NASA's Fermi Gamma-ray Space Telescope has mapped the entire sky with unprecedented resolution and sensitivity in gamma-rays, the highest-energy form of light. On May 10, 2009 a pair of gamma-ray photons reached Fermi only 900 milliseconds apart after traveling for 7 billion years. Fermi's measurement gives us rare experimental evidence that space-time is smooth as Einstein predicted, and has shut the door on several approaches to gravity where space-time is foamy enough to interfere strongly with light.Watch this video on the NASAexplorer YouTube channel.For complete transcript, click here.",
                        "width": 512,
                        "height": 288,
                        "pixels": 147456
                    }
                },
                {
                    "id": 340246,
                    "type": "media",
                    "extra_data": null,
                    "title": null,
                    "caption": null,
                    "instance": {
                        "id": 495564,
                        "url": "https://svs.gsfc.nasa.gov/vis/a010000/a010500/a010510/Einsteins_Cosmic_Speed_Limit_320x240.mp4",
                        "filename": "Einsteins_Cosmic_Speed_Limit_320x240.mp4",
                        "media_type": "Movie",
                        "alt_text": "In its first year of operations, NASA's Fermi Gamma-ray Space Telescope has mapped the entire sky with unprecedented resolution and sensitivity in gamma-rays, the highest-energy form of light. On May 10, 2009 a pair of gamma-ray photons reached Fermi only 900 milliseconds apart after traveling for 7 billion years. Fermi's measurement gives us rare experimental evidence that space-time is smooth as Einstein predicted, and has shut the door on several approaches to gravity where space-time is foamy enough to interfere strongly with light.Watch this video on the NASAexplorer YouTube channel.For complete transcript, click here.",
                        "width": 320,
                        "height": 180,
                        "pixels": 57600
                    }
                },
                {
                    "id": 340250,
                    "type": "media",
                    "extra_data": null,
                    "title": null,
                    "caption": null,
                    "instance": {
                        "id": 495568,
                        "url": "https://svs.gsfc.nasa.gov/vis/a010000/a010500/a010510/GSFC_20091029_EinsteinsCosmicSpeedLimit.wmv",
                        "filename": "GSFC_20091029_EinsteinsCosmicSpeedLimit.wmv",
                        "media_type": "Movie",
                        "alt_text": "In its first year of operations, NASA's Fermi Gamma-ray Space Telescope has mapped the entire sky with unprecedented resolution and sensitivity in gamma-rays, the highest-energy form of light. On May 10, 2009 a pair of gamma-ray photons reached Fermi only 900 milliseconds apart after traveling for 7 billion years. Fermi's measurement gives us rare experimental evidence that space-time is smooth as Einstein predicted, and has shut the door on several approaches to gravity where space-time is foamy enough to interfere strongly with light.Watch this video on the NASAexplorer YouTube channel.For complete transcript, click here.",
                        "width": 346,
                        "height": 236,
                        "pixels": 81656
                    }
                }
            ],
            "extra_data": {}
        },
        {
            "id": 354051,
            "url": "https://svs.gsfc.nasa.gov/10510/#media_group_354051",
            "widget": "Basic text",
            "title": "For More Information",
            "caption": "",
            "description": "See [http://www.nasa.gov/mission_pages/GLAST/news/first_year.html](http://www.nasa.gov/mission_pages/GLAST/news/first_year.html)",
            "items": [],
            "extra_data": {}
        }
    ],
    "studio": "gms",
    "funding_sources": [
        "PAO"
    ],
    "credits": [
        {
            "role": "Animator",
            "people": [
                {
                    "name": "Cruz deWilde",
                    "employer": "Avant Gravity"
                },
                {
                    "name": "Walt Feimer",
                    "employer": "HTSI"
                },
                {
                    "name": "Chris Meaney",
                    "employer": "HTSI"
                },
                {
                    "name": "Chris Smith",
                    "employer": "UMBC"
                }
            ]
        },
        {
            "role": "Video editor",
            "people": [
                {
                    "name": "Stefanie Misztal",
                    "employer": "UMBC"
                },
                {
                    "name": "Scott Wiessinger",
                    "employer": "UMBC"
                }
            ]
        },
        {
            "role": "Interviewee",
            "people": [
                {
                    "name": "Julie McEnery",
                    "employer": "NASA/GSFC"
                }
            ]
        },
        {
            "role": "Narrator",
            "people": [
                {
                    "name": "Chris Smith",
                    "employer": "UMBC"
                }
            ]
        },
        {
            "role": "Producer",
            "people": [
                {
                    "name": "Scott Wiessinger",
                    "employer": "UMBC"
                },
                {
                    "name": "Stefanie Misztal",
                    "employer": "UMBC"
                },
                {
                    "name": "Chris Smith",
                    "employer": "UMBC"
                }
            ]
        },
        {
            "role": "Scientist",
            "people": [
                {
                    "name": "Julie McEnery",
                    "employer": "NASA/GSFC"
                }
            ]
        },
        {
            "role": "Videographer",
            "people": [
                {
                    "name": "Jamal Smith",
                    "employer": "HTSI"
                },
                {
                    "name": "Chris Smith",
                    "employer": "UMBC"
                },
                {
                    "name": "Stefanie Misztal",
                    "employer": "UMBC"
                },
                {
                    "name": "Scott Wiessinger",
                    "employer": "UMBC"
                }
            ]
        },
        {
            "role": "Writer",
            "people": [
                {
                    "name": "Stefanie Misztal",
                    "employer": "UMBC"
                },
                {
                    "name": "Scott Wiessinger",
                    "employer": "UMBC"
                },
                {
                    "name": "Francis Reddy",
                    "employer": "SPSYS"
                }
            ]
        }
    ],
    "missions": [
        "Fermi Gamma-ray Space Telescope",
        "GLAST"
    ],
    "series": [
        "Astrophysics Features",
        "Goddard Best of 2009 Film Festival",
        "Goddard Shorts",
        "Narrated Movies"
    ],
    "tapes": [],
    "papers": [],
    "datasets": [
        {
            "name": "",
            "common_name": "",
            "platform": "Fermi",
            "sensor": null,
            "type": "Other",
            "organizations": [],
            "description": "",
            "credit": "",
            "url": "",
            "date_range": null
        }
    ],
    "nasa_science_categories": [
        "Universe"
    ],
    "keywords": [
        "Ast",
        "Astrophysics",
        "Earth Science",
        "Edited Feature",
        "Fermi",
        "Gamma Ray",
        "Gamma Ray Burst",
        "Gamma Ray Observatory",
        "GLAST",
        "Gravity",
        "HDTV",
        "Narrated",
        "Satellite",
        "Space",
        "Space science",
        "Spectral/Engineering",
        "Universe",
        "Voice Over Talent"
    ],
    "recommended_pages": [],
    "related": [],
    "sources": [],
    "products": [],
    "newer_versions": [],
    "older_versions": [],
    "alternate_versions": []
}