{ "id": 11293, "url": "https://svs.gsfc.nasa.gov/11293/", "page_type": "Produced Video", "title": "NASA Swift Provides the Best-Ever UV View of the Nearest Galaxies", "description": "Astronomers at NASA's Goddard Space Flight Center in Greenbelt, Md., and the Pennsylvania State University in University Park, Pa., have used NASA's Swift satellite to create the most detailed surveys of the Large and Small Magellanic Clouds, the two closest major galaxies, in ultraviolet light.Thousands of images were assembled into seamless portraits of the main body of each galaxy to produce the highest-resolution surveys of the Magellanic Clouds at ultraviolet wavelengths. The project was proposed by Stefan Immler, an astronomer at Goddard.The Large and Small Magellanic Clouds, or LMC and SMC for short, lie about 163,000 and 200,000 light-years away, respectively, and orbit each other as well as our own Milky Way galaxy. Compared to the Milky Way, the LMC has about one-tenth its physical size and only 1 percent of its mass. The SMC is only half the size of the LMC and contains about two-thirds of its mass. The new images reveal about a million ultraviolet sources within the LMC and about 250,000 in the SMC. Viewing in the ultraviolet allows astronomers to suppress the light of normal stars like the sun, which are not very bright at these higher energies, and provide a clearer picture of the hottest stars and star-formation regions. Only Swift's Ultraviolet/Optical Telescope, or UVOT, is capable of producing such high-resolution wide-field multi-color surveys in the ultraviolet. The LMC and SMC images range from 1,600 to 3,300 angstroms, UV wavelengths largely blocked by Earth's atmosphere. The Large and Small Magellanic Clouds are readily visible from the Southern Hemisphere as faint, glowing patches in the night sky. The galaxies are named after Ferdinand Magellan, the Portuguese explorer who in 1519 led an expedition to sail around the world. He and his crew were among the first Europeans to sight the objects.Watch this video on YouTube. || ", "release_date": "2013-06-03T14:00:00-04:00", "update_date": "2023-05-03T13:52:07.098284-04:00", "main_image": { "id": 464710, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a011200/a011293/LMC_Still.jpg", "filename": "LMC_Still.jpg", "media_type": "Image", "alt_text": "New surveys conducted by NASA's Swift provide the most detailed overviews ever captured in ultraviolet light of the Large and Small Magellanic Clouds, the two closest major galaxies to our own. Swift team member Stefan Immler, who proposed the imaging project, narrates this quick tour. All visible light imagery provided by Axel Mellinger, Central Michigan UniversityFor complete transcript, click here.", "width": 1920, "height": 1080, "pixels": 2073600 }, "main_video": { "id": 464713, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a011200/a011293/11293_Swift_Tour_LMC-SMC_H264_Good_1920x1080_29.97.mov", "filename": "11293_Swift_Tour_LMC-SMC_H264_Good_1920x1080_29.97.mov", "media_type": "Movie", "alt_text": "New surveys conducted by NASA's Swift provide the most detailed overviews ever captured in ultraviolet light of the Large and Small Magellanic Clouds, the two closest major galaxies to our own. Swift team member Stefan Immler, who proposed the imaging project, narrates this quick tour. All visible light imagery provided by Axel Mellinger, Central Michigan UniversityFor complete transcript, click here.", "width": 1920, "height": 1080, "pixels": 2073600 }, "progress": "Complete", "media_groups": [ { "id": 345742, "url": "https://svs.gsfc.nasa.gov/11293/#media_group_345742", "widget": "Basic text with HTML", "title": "", "caption": "", "description": "Astronomers at NASA's Goddard Space Flight Center in Greenbelt, Md., and the Pennsylvania State University in University Park, Pa., have used NASA's Swift satellite to create the most detailed surveys of the Large and Small Magellanic Clouds, the two closest major galaxies, in ultraviolet light.

Thousands of images were assembled into seamless portraits of the main body of each galaxy to produce the highest-resolution surveys of the Magellanic Clouds at ultraviolet wavelengths. The project was proposed by Stefan Immler, an astronomer at Goddard.

The Large and Small Magellanic Clouds, or LMC and SMC for short, lie about 163,000 and 200,000 light-years away, respectively, and orbit each other as well as our own Milky Way galaxy.

Compared to the Milky Way, the LMC has about one-tenth its physical size and only 1 percent of its mass. The SMC is only half the size of the LMC and contains about two-thirds of its mass.

The new images reveal about a million ultraviolet sources within the LMC and about 250,000 in the SMC.

Viewing in the ultraviolet allows astronomers to suppress the light of normal stars like the sun, which are not very bright at these higher energies, and provide a clearer picture of the hottest stars and star-formation regions.

Only Swift's Ultraviolet/Optical Telescope, or UVOT, is capable of producing such high-resolution wide-field multi-color surveys in the ultraviolet. The LMC and SMC images range from 1,600 to 3,300 angstroms, UV wavelengths largely blocked by Earth's atmosphere.

The Large and Small Magellanic Clouds are readily visible from the Southern Hemisphere as faint, glowing patches in the night sky. The galaxies are named after Ferdinand Magellan, the Portuguese explorer who in 1519 led an expedition to sail around the world. He and his crew were among the first Europeans to sight the objects.

Watch this video on YouTube.", "items": [], "extra_data": {} }, { "id": 345743, "url": "https://svs.gsfc.nasa.gov/11293/#media_group_345743", "widget": "Video player", "title": "", "caption": "", "description": "New surveys conducted by NASA's Swift provide the most detailed overviews ever captured in ultraviolet light of the Large and Small Magellanic Clouds, the two closest major galaxies to our own. Swift team member Stefan Immler, who proposed the imaging project, narrates this quick tour. All visible light imagery provided by Axel Mellinger, Central Michigan University

For complete transcript, click here.", "items": [ { "id": 308578, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 464710, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a011200/a011293/LMC_Still.jpg", "filename": "LMC_Still.jpg", "media_type": "Image", "alt_text": "New surveys conducted by NASA's Swift provide the most detailed overviews ever captured in ultraviolet light of the Large and Small Magellanic Clouds, the two closest major galaxies to our own. Swift team member Stefan Immler, who proposed the imaging project, narrates this quick tour. 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The 160-megapixel image required a cumulative exposure of 5.4 days. The image includes light from 1,600 to 3,300 angstroms — UV wavelengths largely blocked by Earth's atmosphere — and has an angular resolution of 2.5 arcseconds. Viewing in the ultraviolet allows astronomers to suppress the light of normal stars like the sun, which are not very bright at these higher energies, and provides a clearer picture of the hottest stars and star-formation regions. The LMC is about 14,000 light-years across. The image is oriented with north at top.Credit: NASA/Swift/S. Immler (Goddard) and M. Siegel (Penn State)", "width": 7000, "height": 4375, "pixels": 30625000 } }, { "id": 308595, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 464735, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a011200/a011293/LMC_edit_web.jpg", "filename": "LMC_edit_web.jpg", "media_type": "Image", "alt_text": "This is the Swift LMC mosaic at full resolution. 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Siegel (Penn State)", "width": 320, "height": 200, "pixels": 64000 } }, { "id": 308591, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 464731, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a011200/a011293/LMC_edit.tiff", "filename": "LMC_edit.tiff", "media_type": "Image", "alt_text": "This is the Swift LMC mosaic at full resolution. Nearly a million ultraviolet sources appear in this mosaic of the Large Magellanic Cloud, which was assembled from 2,200 images taken by the Ultraviolet/Optical Telescope aboard NASA's Swift satellite. The 160-megapixel image required a cumulative exposure of 5.4 days. The image includes light from 1,600 to 3,300 angstroms — UV wavelengths largely blocked by Earth's atmosphere — and has an angular resolution of 2.5 arcseconds. Viewing in the ultraviolet allows astronomers to suppress the light of normal stars like the sun, which are not very bright at these higher energies, and provides a clearer picture of the hottest stars and star-formation regions. The LMC is about 14,000 light-years across. The image is oriented with north at top.Credit: NASA/Swift/S. Immler (Goddard) and M. Siegel (Penn State)", "width": 16000, "height": 10000, "pixels": 160000000 } }, { "id": 308594, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 464734, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a011200/a011293/LMC_7k.tiff", "filename": "LMC_7k.tiff", "media_type": "Image", "alt_text": "This is the Swift LMC mosaic at full resolution. Nearly a million ultraviolet sources appear in this mosaic of the Large Magellanic Cloud, which was assembled from 2,200 images taken by the Ultraviolet/Optical Telescope aboard NASA's Swift satellite. The 160-megapixel image required a cumulative exposure of 5.4 days. The image includes light from 1,600 to 3,300 angstroms — UV wavelengths largely blocked by Earth's atmosphere — and has an angular resolution of 2.5 arcseconds. Viewing in the ultraviolet allows astronomers to suppress the light of normal stars like the sun, which are not very bright at these higher energies, and provides a clearer picture of the hottest stars and star-formation regions. The LMC is about 14,000 light-years across. The image is oriented with north at top.Credit: NASA/Swift/S. Immler (Goddard) and M. Siegel (Penn State)", "width": 7000, "height": 4375, "pixels": 30625000 } } ], "extra_data": {} }, { "id": 345747, "url": "https://svs.gsfc.nasa.gov/11293/#media_group_345747", "widget": "Single image", "title": "", "caption": "", "description": "This is the Swift SMC mosaic at full resolution. About 250,000 ultraviolet sources appear in this mosaic of the Small Magellanic Cloud, which was assembled from 656 images taken by the Ultraviolet/Optical Telescope aboard NASA's Swift satellite. The approximately 15-megapixel SMC image has a total exposure time of 1.8 days. The image includes light from 1,600 to 3,300 angstroms — UV wavelengths largely blocked by Earth's atmosphere — and has an angular resolution of 2.5 arcseconds. Viewing in the ultraviolet allows astronomers to suppress the light of normal stars like the sun, which are not very bright at these higher energies, and provides a clearer picture of the hottest stars and star-formation regions. The SMC is about 7,000 light-years across. The image is oriented with north at top.

Credit: NASA/Swift/S. Immler (Goddard) and M. Siegel (Penn State)", "items": [ { "id": 308597, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 464740, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a011200/a011293/SMC_edit.jpg", "filename": "SMC_edit.jpg", "media_type": "Image", "alt_text": "This is the Swift SMC mosaic at full resolution. About 250,000 ultraviolet sources appear in this mosaic of the Small Magellanic Cloud, which was assembled from 656 images taken by the Ultraviolet/Optical Telescope aboard NASA's Swift satellite. The approximately 15-megapixel SMC image has a total exposure time of 1.8 days. The image includes light from 1,600 to 3,300 angstroms — UV wavelengths largely blocked by Earth's atmosphere — and has an angular resolution of 2.5 arcseconds. Viewing in the ultraviolet allows astronomers to suppress the light of normal stars like the sun, which are not very bright at these higher energies, and provides a clearer picture of the hottest stars and star-formation regions. The SMC is about 7,000 light-years across. The image is oriented with north at top.Credit: NASA/Swift/S. Immler (Goddard) and M. Siegel (Penn State)", "width": 8800, "height": 7200, "pixels": 63360000 } }, { "id": 308599, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 464737, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a011200/a011293/SMC_edit_crop.jpg", "filename": "SMC_edit_crop.jpg", "media_type": "Image", "alt_text": "This is the Swift SMC mosaic at full resolution. About 250,000 ultraviolet sources appear in this mosaic of the Small Magellanic Cloud, which was assembled from 656 images taken by the Ultraviolet/Optical Telescope aboard NASA's Swift satellite. The approximately 15-megapixel SMC image has a total exposure time of 1.8 days. The image includes light from 1,600 to 3,300 angstroms — UV wavelengths largely blocked by Earth's atmosphere — and has an angular resolution of 2.5 arcseconds. Viewing in the ultraviolet allows astronomers to suppress the light of normal stars like the sun, which are not very bright at these higher energies, and provides a clearer picture of the hottest stars and star-formation regions. The SMC is about 7,000 light-years across. The image is oriented with north at top.Credit: NASA/Swift/S. Immler (Goddard) and M. Siegel (Penn State)", "width": 4276, "height": 3497, "pixels": 14953172 } }, { "id": 308600, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 464738, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a011200/a011293/SMC_edit_crop_web.jpg", "filename": "SMC_edit_crop_web.jpg", "media_type": "Image", "alt_text": "This is the Swift SMC mosaic at full resolution. About 250,000 ultraviolet sources appear in this mosaic of the Small Magellanic Cloud, which was assembled from 656 images taken by the Ultraviolet/Optical Telescope aboard NASA's Swift satellite. The approximately 15-megapixel SMC image has a total exposure time of 1.8 days. The image includes light from 1,600 to 3,300 angstroms — UV wavelengths largely blocked by Earth's atmosphere — and has an angular resolution of 2.5 arcseconds. Viewing in the ultraviolet allows astronomers to suppress the light of normal stars like the sun, which are not very bright at these higher energies, and provides a clearer picture of the hottest stars and star-formation regions. The SMC is about 7,000 light-years across. The image is oriented with north at top.Credit: NASA/Swift/S. Immler (Goddard) and M. Siegel (Penn State)", "width": 319, "height": 261, "pixels": 83259 } }, { "id": 308596, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 464739, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a011200/a011293/SMC_edit.tiff", "filename": "SMC_edit.tiff", "media_type": "Image", "alt_text": "This is the Swift SMC mosaic at full resolution. About 250,000 ultraviolet sources appear in this mosaic of the Small Magellanic Cloud, which was assembled from 656 images taken by the Ultraviolet/Optical Telescope aboard NASA's Swift satellite. The approximately 15-megapixel SMC image has a total exposure time of 1.8 days. The image includes light from 1,600 to 3,300 angstroms — UV wavelengths largely blocked by Earth's atmosphere — and has an angular resolution of 2.5 arcseconds. Viewing in the ultraviolet allows astronomers to suppress the light of normal stars like the sun, which are not very bright at these higher energies, and provides a clearer picture of the hottest stars and star-formation regions. The SMC is about 7,000 light-years across. The image is oriented with north at top.Credit: NASA/Swift/S. Immler (Goddard) and M. Siegel (Penn State)", "width": 8800, "height": 7200, "pixels": 63360000 } }, { "id": 308598, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 464736, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a011200/a011293/SMC_edit_crop.tiff", "filename": "SMC_edit_crop.tiff", "media_type": "Image", "alt_text": "This is the Swift SMC mosaic at full resolution. About 250,000 ultraviolet sources appear in this mosaic of the Small Magellanic Cloud, which was assembled from 656 images taken by the Ultraviolet/Optical Telescope aboard NASA's Swift satellite. The approximately 15-megapixel SMC image has a total exposure time of 1.8 days. The image includes light from 1,600 to 3,300 angstroms — UV wavelengths largely blocked by Earth's atmosphere — and has an angular resolution of 2.5 arcseconds. Viewing in the ultraviolet allows astronomers to suppress the light of normal stars like the sun, which are not very bright at these higher energies, and provides a clearer picture of the hottest stars and star-formation regions. The SMC is about 7,000 light-years across. The image is oriented with north at top.Credit: NASA/Swift/S. Immler (Goddard) and M. Siegel (Penn State)", "width": 4276, "height": 3497, "pixels": 14953172 } } ], "extra_data": {} }, { "id": 345748, "url": "https://svs.gsfc.nasa.gov/11293/#media_group_345748", "widget": "Single image", "title": "", "caption": "", "description": "The LMC as it appears in visible light. The galaxy's most prominent object is the sprawling Tarantula Nebula (middle left), the largest star factory in the LMC and the most active star-formation zone among the dozens of galaxies that make up the Local Group, which includes our own Milky Way and the Andromeda galaxy (M31). The LMC is about 14,000 light-years across.

Credit: Axel Mellinger, Central Michigan Univ.", "items": [ { "id": 308601, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 464741, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a011200/a011293/LMC_300mm_HaRGB_final.jpg", "filename": "LMC_300mm_HaRGB_final.jpg", "media_type": "Image", "alt_text": "The LMC as it appears in visible light. The galaxy's most prominent object is the sprawling Tarantula Nebula (middle left), the largest star factory in the LMC and the most active star-formation zone among the dozens of galaxies that make up the Local Group, which includes our own Milky Way and the Andromeda galaxy (M31). The LMC is about 14,000 light-years across.Credit: Axel Mellinger, Central Michigan Univ.", "width": 2700, "height": 2700, "pixels": 7290000 } }, { "id": 308602, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 464742, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a011200/a011293/LMC_300mm_HaRGB_final_web.jpg", "filename": "LMC_300mm_HaRGB_final_web.jpg", "media_type": "Image", "alt_text": "The LMC as it appears in visible light. The galaxy's most prominent object is the sprawling Tarantula Nebula (middle left), the largest star factory in the LMC and the most active star-formation zone among the dozens of galaxies that make up the Local Group, which includes our own Milky Way and the Andromeda galaxy (M31). The LMC is about 14,000 light-years across.Credit: Axel Mellinger, Central Michigan Univ.", "width": 320, "height": 320, "pixels": 102400 } }, { "id": 308603, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 464743, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a011200/a011293/Mellinger_LMC_300mm_HaRGB_final.tif", "filename": "Mellinger_LMC_300mm_HaRGB_final.tif", "media_type": "Image", "alt_text": "The LMC as it appears in visible light. The galaxy's most prominent object is the sprawling Tarantula Nebula (middle left), the largest star factory in the LMC and the most active star-formation zone among the dozens of galaxies that make up the Local Group, which includes our own Milky Way and the Andromeda galaxy (M31). The LMC is about 14,000 light-years across.Credit: Axel Mellinger, Central Michigan Univ.", "width": 3500, "height": 3500, "pixels": 12250000 } } ], "extra_data": {} }, { "id": 345749, "url": "https://svs.gsfc.nasa.gov/11293/#media_group_345749", "widget": "Single image", "title": "", "caption": "", "description": "This visible light mosaic shows the LMC and SMC in context with the plane of our own galaxy, the Milky Way. Dusty filaments create dark traces across the bright central plane of the Milky Way, visible across the top of the image. Below it, separated by about 21 degrees, lie the LMC and SMC, the closest major galaxies to our own. Lying about 163,000 and 200,000 light-years away, respectively, the LMC and SMC orbit each other as well as our own Milky Way galaxy. The LMC is about one-tenth the size of the Milky Way and contains only 1 percent of its mass. The SMC is half the LMC's size and contains about two-thirds of its mass.

Credit: Axel Mellinger, Central Michigan Univ.", "items": [ { "id": 308604, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 464744, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a011200/a011293/Mellinger_mwpan2_LMC+SMC.jpg", "filename": "Mellinger_mwpan2_LMC+SMC.jpg", "media_type": "Image", "alt_text": "This visible light mosaic shows the LMC and SMC in context with the plane of our own galaxy, the Milky Way. Dusty filaments create dark traces across the bright central plane of the Milky Way, visible across the top of the image. Below it, separated by about 21 degrees, lie the LMC and SMC, the closest major galaxies to our own. Lying about 163,000 and 200,000 light-years away, respectively, the LMC and SMC orbit each other as well as our own Milky Way galaxy. The LMC is about one-tenth the size of the Milky Way and contains only 1 percent of its mass. The SMC is half the LMC's size and contains about two-thirds of its mass.Credit: Axel Mellinger, Central Michigan Univ.", "width": 7728, "height": 4928, "pixels": 38083584 } }, { "id": 308605, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 464745, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a011200/a011293/Mellinger_mwpan2_LMC+SMC_web.jpg", "filename": "Mellinger_mwpan2_LMC+SMC_web.jpg", "media_type": "Image", "alt_text": "This visible light mosaic shows the LMC and SMC in context with the plane of our own galaxy, the Milky Way. Dusty filaments create dark traces across the bright central plane of the Milky Way, visible across the top of the image. Below it, separated by about 21 degrees, lie the LMC and SMC, the closest major galaxies to our own. Lying about 163,000 and 200,000 light-years away, respectively, the LMC and SMC orbit each other as well as our own Milky Way galaxy. The LMC is about one-tenth the size of the Milky Way and contains only 1 percent of its mass. The SMC is half the LMC's size and contains about two-thirds of its mass.Credit: Axel Mellinger, Central Michigan Univ.", "width": 320, "height": 204, "pixels": 65280 } }, { "id": 308608, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 464748, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a011200/a011293/Mellinger_mwpan2_LMC+SMC_1820.tif", "filename": "Mellinger_mwpan2_LMC+SMC_1820.tif", "media_type": "Image", "alt_text": "This visible light mosaic shows the LMC and SMC in context with the plane of our own galaxy, the Milky Way. Dusty filaments create dark traces across the bright central plane of the Milky Way, visible across the top of the image. Below it, separated by about 21 degrees, lie the LMC and SMC, the closest major galaxies to our own. Lying about 163,000 and 200,000 light-years away, respectively, the LMC and SMC orbit each other as well as our own Milky Way galaxy. The LMC is about one-tenth the size of the Milky Way and contains only 1 percent of its mass. The SMC is half the LMC's size and contains about two-thirds of its mass.Credit: Axel Mellinger, Central Michigan Univ.", "width": 1820, "height": 1024, "pixels": 1863680 } }, { "id": 308606, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 464746, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a011200/a011293/Mellinger_mwpan2_LMC+SMC_7700.tif", "filename": "Mellinger_mwpan2_LMC+SMC_7700.tif", "media_type": "Image", "alt_text": "This visible light mosaic shows the LMC and SMC in context with the plane of our own galaxy, the Milky Way. Dusty filaments create dark traces across the bright central plane of the Milky Way, visible across the top of the image. Below it, separated by about 21 degrees, lie the LMC and SMC, the closest major galaxies to our own. Lying about 163,000 and 200,000 light-years away, respectively, the LMC and SMC orbit each other as well as our own Milky Way galaxy. The LMC is about one-tenth the size of the Milky Way and contains only 1 percent of its mass. The SMC is half the LMC's size and contains about two-thirds of its mass.Credit: Axel Mellinger, Central Michigan Univ.", "width": 7720, "height": 4343, "pixels": 33527960 } }, { "id": 308607, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 464747, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a011200/a011293/Mellinger_mwpan2_LMC+SMC_3640.tif", "filename": "Mellinger_mwpan2_LMC+SMC_3640.tif", "media_type": "Image", "alt_text": "This visible light mosaic shows the LMC and SMC in context with the plane of our own galaxy, the Milky Way. Dusty filaments create dark traces across the bright central plane of the Milky Way, visible across the top of the image. Below it, separated by about 21 degrees, lie the LMC and SMC, the closest major galaxies to our own. Lying about 163,000 and 200,000 light-years away, respectively, the LMC and SMC orbit each other as well as our own Milky Way galaxy. The LMC is about one-tenth the size of the Milky Way and contains only 1 percent of its mass. The SMC is half the LMC's size and contains about two-thirds of its mass.Credit: Axel Mellinger, Central Michigan Univ.", "width": 3640, "height": 2048, "pixels": 7454720 } } ], "extra_data": {} }, { "id": 345750, "url": "https://svs.gsfc.nasa.gov/11293/#media_group_345750", "widget": "Single image", "title": "", "caption": "", "description": "This visible light mosaic shows the LMC and SMC. Separated by about 21 degrees, the two galaxies are readily visible from the Southern Hemisphere as faint, glowing patches in the night sky. The LMC and SMC are the closest major galaxies to our own and lie about 163,000 and 200,000 light-years away, respectively.

Credit: Axel Mellinger, Central Michigan Univ.", "items": [ { "id": 308610, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 464752, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a011200/a011293/Mellinger_LMC+SMC_only_full.jpg", "filename": "Mellinger_LMC+SMC_only_full.jpg", "media_type": "Image", "alt_text": "This visible light mosaic shows the LMC and SMC. Separated by about 21 degrees, the two galaxies are readily visible from the Southern Hemisphere as faint, glowing patches in the night sky. The LMC and SMC are the closest major galaxies to our own and lie about 163,000 and 200,000 light-years away, respectively.Credit: Axel Mellinger, Central Michigan Univ.", "width": 3192, "height": 1796, "pixels": 5732832 } }, { "id": 308611, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 464750, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a011200/a011293/Mellinger_LMC+SMC_only_small.jpg", "filename": "Mellinger_LMC+SMC_only_small.jpg", "media_type": "Image", "alt_text": "This visible light mosaic shows the LMC and SMC. Separated by about 21 degrees, the two galaxies are readily visible from the Southern Hemisphere as faint, glowing patches in the night sky. The LMC and SMC are the closest major galaxies to our own and lie about 163,000 and 200,000 light-years away, respectively.Credit: Axel Mellinger, Central Michigan Univ.", "width": 673, "height": 379, "pixels": 255067 } }, { "id": 308612, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 464751, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a011200/a011293/Mellinger_LMC+SMC_only_full_web.png", "filename": "Mellinger_LMC+SMC_only_full_web.png", "media_type": "Image", "alt_text": "This visible light mosaic shows the LMC and SMC. Separated by about 21 degrees, the two galaxies are readily visible from the Southern Hemisphere as faint, glowing patches in the night sky. The LMC and SMC are the closest major galaxies to our own and lie about 163,000 and 200,000 light-years away, respectively.Credit: Axel Mellinger, Central Michigan Univ.", "width": 320, "height": 180, "pixels": 57600 } }, { "id": 308609, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 464749, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a011200/a011293/Mellinger_LMC+SMC_only_full.tif", "filename": "Mellinger_LMC+SMC_only_full.tif", "media_type": "Image", "alt_text": "This visible light mosaic shows the LMC and SMC. Separated by about 21 degrees, the two galaxies are readily visible from the Southern Hemisphere as faint, glowing patches in the night sky. The LMC and SMC are the closest major galaxies to our own and lie about 163,000 and 200,000 light-years away, respectively.Credit: Axel Mellinger, Central Michigan Univ.", "width": 3192, "height": 1796, "pixels": 5732832 } } ], "extra_data": {} }, { "id": 345751, "url": "https://svs.gsfc.nasa.gov/11293/#media_group_345751", "widget": "Single image", "title": "", "caption": "", "description": "An annotated version of the Swift LMC mosaic that identifies a sampling of astronomical objects.

Credit: NASA/Swift/S. Immler (Goddard) and M. Siegel (Penn State)", "items": [ { "id": 308613, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 464753, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a011200/a011293/LMC_annotated_copy.jpeg", "filename": "LMC_annotated_copy.jpeg", "media_type": "Image", "alt_text": "An annotated version of the Swift LMC mosaic that identifies a sampling of astronomical objects.Credit: NASA/Swift/S. Immler (Goddard) and M. Siegel (Penn State)", "width": 1907, "height": 1148, "pixels": 2189236 } }, { "id": 308614, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 464754, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a011200/a011293/LMC_annotated_copy_web.jpg", "filename": "LMC_annotated_copy_web.jpg", "media_type": "Image", "alt_text": "An annotated version of the Swift LMC mosaic that identifies a sampling of astronomical objects.Credit: NASA/Swift/S. Immler (Goddard) and M. Siegel (Penn State)", "width": 319, "height": 192, "pixels": 61248 } } ], "extra_data": {} }, { "id": 345752, "url": "https://svs.gsfc.nasa.gov/11293/#media_group_345752", "widget": "Single image", "title": "", "caption": "", "description": "An annotated version of the Swift SMC mosaic that identifies a sampling of astronomical objects.

Credit: NASA/Swift/S. Immler (Goddard) and M. Siegel (Penn State)", "items": [ { "id": 308615, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 464755, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a011200/a011293/SMC_annotated.jpeg", "filename": "SMC_annotated.jpeg", "media_type": "Image", "alt_text": "An annotated version of the Swift SMC mosaic that identifies a sampling of astronomical objects.Credit: NASA/Swift/S. Immler (Goddard) and M. Siegel (Penn State)", "width": 1907, "height": 1148, "pixels": 2189236 } }, { "id": 308616, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 464756, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a011200/a011293/SMC_annotated_web.jpg", "filename": "SMC_annotated_web.jpg", "media_type": "Image", "alt_text": "An annotated version of the Swift SMC mosaic that identifies a sampling of astronomical objects.Credit: NASA/Swift/S. Immler (Goddard) and M. 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Known as the Large and Small Magellenic Clouds, or LMC and SMC for short, they are the Milky Way’s closest neighbors, visible from Earth’s Southern Hemisphere as faint, glowing clouds in the night sky. Now, we can explore the breadth of these galaxies with the best ultraviolet view ever created. Astronomers wanted to view the LMC and SMC in ultraviolet because that light removes the distraction of normal stars like our sun, revealing only the hottest stars and star-formation regions. To create the mosaics, scientists stitched together thousands of individual snapshots taken by the Ultraviolet/Optical Telescope on NASA’s Swift satellite. Such detail allows us to study the evolution of each galaxy’s young stars in a single picture—an option that’s not available for own galaxy, which we must view from the inside. Watch the video to learn more. || ", "release_date": "2013-06-25T00:00:00-04:00", "update_date": "2023-05-03T13:52:02.935241-04:00", "main_image": { "id": 464272, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a011200/a011273/cover-n1024.jpg", "filename": "cover-n1024.jpg", "media_type": "Image", "alt_text": "Astronomers assemble broad and intricate UV pictures of two nearby galaxies.", "width": 1024, "height": 576, "pixels": 589824 } }, { "id": 10485, "url": "https://svs.gsfc.nasa.gov/10485/", "page_type": "Produced Video", "title": "Swift's UV portrait of the Andromeda Galaxy", "description": "NASA's Swift satellite has acquired the highest-resolution view of the neighboring spiral galaxy M31. Also known as the Andromeda Galaxy, M31 is the largest and closest such galaxy to our own. It's more than 220,000 light-years across and lies 2.5 million light-years away in the constellation Andromeda. Between May 25 and July 26, 2008, Swift's Ultraviolet/Optical Telescope (UVOT) acquired 330 images of M31 at wavelengths of 192.8, 224.6, and 260 nanometers. The images represent a total exposure time of 24 hours. Some 20,000 ultraviolet sources are visible in the image, including M32, a small galaxy in orbit around M31. Dense clusters of hot, young, blue stars sparkle in the disk beyond the galaxy's smooth, redder central bulge. Star clusters are especially plentiful along a ring about 150,000 light-years across. || ", "release_date": "2009-09-16T09:40:00-04:00", "update_date": "2023-05-03T13:54:38.835060-04:00", "main_image": { "id": 496373, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a010400/a010485/M31_Layered_UV_and_Optical.jpg", "filename": "M31_Layered_UV_and_Optical.jpg", "media_type": "Image", "alt_text": "High resolution layered Photoshop TIFF containing both UV and Optical image layers.", "width": 4412, "height": 1939, "pixels": 8554868 } } ], "sources": [], "products": [], "newer_versions": [], "older_versions": [], "alternate_versions": [] }