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    "title": "NASA’s NICER Sizes Up a Pulsar, Reveals First-ever Surface Map",
    "description": "Watch how NASA’s Neutron star Interior Composition Explorer (NICER) has expanded our understanding of pulsars, the dense, spinning corpses of exploded stars. Pulsar J0030+0451 (J0030 for short), located 1,100 light-years away in the constellation Pisces, now has the most precise and reliable measurements of both a pulsar’s mass and size to date. The shapes and locations of its hot spots challenge textbook depictions of these incredible objects. Music: \"Uncertain Ahead\" and \"Flowing Cityscape\" (underscore).  Both from Universal Production MusicCredit: NASA's Goddard Space Flight CenterWatch this video on the NASA Goddard YouTube channel.Complete transcript available. || Two_NS_Model_Still.jpg (1920x1080) [308.5 KB] || Two_NS_Model_Still_print.jpg (1024x576) [140.4 KB] || Two_NS_Model_Still_searchweb.png (320x180) [87.0 KB] || Two_NS_Model_Still_thm.png (80x40) [8.0 KB] || 13240_NICER_J0030_MassRadius_1080.webm (1920x1080) [33.5 MB] || 13240_NICER_J0030_MassRadius_1080.mp4 (1920x1080) [301.1 MB] || 13240_NICER_J0030_MassRadius_Best_1080.mp4 (1920x1080) [804.5 MB] || 13240_NICER_J0030_MassRadius_SRT_Captions.en_US.srt [5.9 KB] || 13240_NICER_J0030_MassRadius_SRT_Captions.en_US.vtt [5.9 KB] || 13240_NICER_J0030_MassRadius_ProRes_1920x1080_2997.mov (1920x1080) [1.9 GB] || ",
    "release_date": "2019-12-12T11:00:00-05:00",
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            "description": "Watch how NASA’s Neutron star Interior Composition Explorer (NICER) has expanded our understanding of pulsars, the dense, spinning corpses of exploded stars. Pulsar J0030+0451 (J0030 for short), located 1,100 light-years away in the constellation Pisces, now has the most precise and reliable measurements of both a pulsar’s mass and size to date. The shapes and locations of its hot spots challenge textbook depictions of these incredible objects. \r<p><p><p>Music: \"Uncertain Ahead\" and \"Flowing Cityscape\" (underscore).  Both from Universal Production Music<p><p>Credit: NASA's Goddard Space Flight Center<p><p><p><p><p><p><p><b>Watch this video on the <a href=\"https://www.youtube.com/watch?v=zukBXehGHas\" target=\"_blank\" >NASA Goddard YouTube channel</a>.</b><p><p><p><p><a href=\"/vis/a010000/a013200/a013240/13240_NICER_J0030_MassRadius_HTML_Transcript.html\">Complete transcript</a> available.</p>",
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                        "alt_text": "Watch how NASA’s Neutron star Interior Composition Explorer (NICER) has expanded our understanding of pulsars, the dense, spinning corpses of exploded stars. Pulsar J0030+0451 (J0030 for short), located 1,100 light-years away in the constellation Pisces, now has the most precise and reliable measurements of both a pulsar’s mass and size to date. The shapes and locations of its hot spots challenge textbook depictions of these incredible objects. \rMusic: \"Uncertain Ahead\" and \"Flowing Cityscape\" (underscore).  Both from Universal Production MusicCredit: NASA's Goddard Space Flight CenterWatch this video on the NASA Goddard YouTube channel.Complete transcript available.",
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            "description": "Scientists have reached a new frontier in our understanding of pulsars, the dense, whirling remains of exploded stars, thanks to observations from NASA’s Neutron star Interior Composition Explorer (NICER). Data from this X-ray telescope aboard the International Space Station has produced the first precise and dependable measurements of both a pulsar’s size and its mass.\r<br>\r<br>The pulsar in question, J0030+0451 (J0030 for short), is a solitary pulsar that lies 1,100 light-years away in the constellation Pisces. While measuring the pulsar's heft and proportions, NICER revealed that the shapes and locations of million-degree hot spots on the pulsar’s surface are much stranger than generally thought. \r<br>\r<br>Using NICER observations from July 2017 to December 2018, two groups of scientists mapped J0030’s hot spots using independent methods and converged on nearly identical results for its mass and size. One team, led by researchers at the University of Amsterdam, determined the pulsar is around 1.3 times the Sun’s mass, 15.8 miles (25.4 kilometers) across and has two hot spots — one small and circular, the other long and crescent-shaped. A second team found J0030 is about 1.4 times the Sun’s mass, about 16.2 miles (26 kilometers) wide and has two or three oval-shaped hot spots. All spots in all models are in the pulsar’s southern hemisphere — unlike textbook images  where the spots lie on opposite sides other at each magnetic poles.",
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            "description": "See [https://www.nasa.gov/feature/goddard/2019/nasa-s-nicer-delivers-best-ever-pulsar-measurements-1st-surface-map/](https://www.nasa.gov/feature/goddard/2019/nasa-s-nicer-delivers-best-ever-pulsar-measurements-1st-surface-map/)",
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        },
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                {
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            ]
        }
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        "https://iopscience.iop.org/journal/2041-8205/page/Focus_on_NICER_Constraints_on_the_Dense_Matter_Equation_of_State"
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    "recommended_pages": [],
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            "page_type": "Produced Video",
            "title": "NASA’s NICER Telescope Examined a Star on the Edge of Becoming a Black Hole Live Shots",
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        },
        {
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            "title": "NASA’s NICER Tests Matter’s Limits",
            "description": "Watch how NASA’s Neutron star Interior Composition Explorer (NICER) is helping physicists peer into the hearts of neutron stars, the remains of massive stars that exploded in supernovae. Scientists want to explore the nature of matter inside these objects, where it exists on the verge of collapsing into black holes. To do so, scientists need precise measurements of neutron stars’ masses and sizes, which NICER and other efforts are now making possible.Credit: NASA’s Goddard Space Flight CenterMusic: \"Question Time\" from Universal Production MusicWatch this video on the NASA Goddard YouTube channel.Complete transcript available. || Video_title_card_2.jpg (1920x1080) [206.4 KB] || Video_title_card_2_searchweb.png (320x180) [54.8 KB] || Video_title_card_2_thm.png (80x40) [5.7 KB] || 13832_NICER_TestsMattersLimits_Best_1080.webm (1920x1080) [28.5 MB] || 13832_NICER_TestsMattersLimits_1080.mp4 (1920x1080) [187.8 MB] || 13832_NICER_TestsMattersLimits_Best_1080.mp4 (1920x1080) [650.1 MB] || 13832_NICER_TestsMattersLimits_SRT_Captions.en_US.srt [4.7 KB] || 13832_NICER_TestsMattersLimits_SRT_Captions.en_US.vtt [4.8 KB] || 13832_NICER_TestsMattersLimits_ProRes_1920x1080_2997.mov (1920x1080) [3.5 GB] || ",
            "release_date": "2021-04-17T11:00:00-04:00",
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                "alt_text": "Watch how NASA’s Neutron star Interior Composition Explorer (NICER) is helping physicists peer into the hearts of neutron stars, the remains of massive stars that exploded in supernovae. Scientists want to explore the nature of matter inside these objects, where it exists on the verge of collapsing into black holes. To do so, scientists need precise measurements of neutron stars’ masses and sizes, which NICER and other efforts are now making possible.Credit: NASA’s Goddard Space Flight CenterMusic: \"Question Time\" from Universal Production MusicWatch this video on the NASA Goddard YouTube channel.Complete transcript available.",
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