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            "description": "The Nancy Grace Roman Space Telescope's Wide Field Instrument will use a special tiling pattern to perform its high latitude spectroscopic survey.  Roman starts with a single image \"footprint\" produced by its 18-detector array and then takes a second  image slightly offset to cover the small gaps between the  individual detectors.  It repeats this process eight more times to create a mosaic covering about 2.5 square degrees of sky. Roman then creates the same mosaic, angled slightly, overlapping the first, and then two more times rotated about 180 degrees.  These four passes, similar to taking a longer exposure, give better sensitivity and more precise measurements.  <br><br>In current plans, Roman’s spectroscopy survey will cover nearly 2,000 square degrees, or about 5% of the sky, in just over seven months. The team’s results showed that the survey should reveal precise distances for 10 million galaxies from when the universe was between about 3-6 billion years old, since light that reaches the telescope began its journey when the universe was much younger.",
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            "description": "Same as above but faster and without labels.<p><p>Credit: NASA's Goddard Space Flight Center",
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            "description": "See [https://www.nasa.gov/feature/goddard/2022/nasa-s-roman-mission-will-test-competing-cosmic-acceleration-theories](https://www.nasa.gov/feature/goddard/2022/nasa-s-roman-mission-will-test-competing-cosmic-acceleration-theories)",
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            "page_type": "Infographic",
            "title": "Roman's Core Surveys Infographics",
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            "description": "This video dissolves between the entire collection of redshift cubes in 55 seconds. A shorter, faster version is available below.Credit: NASA’s Goddard Space Flight Center/F. Reddy and Z. Zhai, Y. Wang (IPAC) and A. Benson (Carnegie Observatories)Watch this video on the NASA.gov Video YouTube channel.Complete transcript available. || Cube_Spin_110-Short_mkII_still.jpg (1920x1080) [577.0 KB] || Cube_Spin_110-Short_mkII_still_print.jpg (1024x576) [158.1 KB] || Cube_Spin_110-Short_mkII_still_thm.png (80x40) [6.3 KB] || Cube_Spin_110-Short_mkII_still_searchweb.png (320x180) [79.4 KB] || 14105_110_RedshiftGalaxyCube_Dissolve_1080.mp4 (1920x1080) [59.2 MB] || 14105_110_RedshiftGalaxyCube_Dissolve_ProRes_1920x1080_2997.mov (1920x1080) [970.0 MB] || 14105_110_RedshiftGalaxyCube_Dissolve_1080.webm (1920x1080) [7.0 MB] || 14105_110_RedshiftGalaxyCube_Dissolve_SRT_Captions.en_US.srt [956 bytes] || 14105_110_RedshiftGalaxyCube_Dissolve_SRT_Captions.en_US.vtt [969 bytes] || ",
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                "alt_text": "This video dissolves between the entire collection of redshift cubes in 55 seconds. A shorter, faster version is available below.Credit: NASA’s Goddard Space Flight Center/F. Reddy and Z. Zhai, Y. Wang (IPAC) and A. Benson (Carnegie Observatories)Watch this video on the NASA.gov Video YouTube channel.Complete transcript available.",
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            "url": "https://svs.gsfc.nasa.gov/14107/",
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            "title": "Roman Space Telescope Redshift Infographic",
            "description": "This graphic illustrates how cosmological redshift works and how it offers information about the universe’s evolution. The universe is expanding, and that expansion stretches light traveling through space. The more it has stretched, the greater the redshift and the greater the distance the light has traveled. As a result, we need telescopes with infrared detectors to see light from the first, most distant galaxies.Credit: NASA, ESA, Leah Hustak (STScI) || Roman_CosmologicalRedshift_Vertical_v3.png (1920x4843) [1.3 MB] || Roman_CosmologicalRedshift_Vertical_v3_print.jpg (1024x2582) [361.6 KB] || ",
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