{"version": "https://jsonfeed.org/version/1.1", "title": "Astronomy Picture of the Day [ko]", "feed_url": "https://apod.nasa.gov/", "home_page_url": "56", "description": "Astronomy Picture of the Day", "icon": null, "favicon": null, "authors": [{"name": "Unknown", "url": null, "avatar": null}], "language": "en", "expired": null, "hub": null, "items": [{"id": "https://apod.nasa.gov/apod/ap260628.html", "url": "https://apod.nasa.gov/apod/ap260628.html", "external_url": null, "title": "AR 4478: Giant Sunspot Group", "content_text": "", "content_html": "\"The
Explanation: \nRight now, one of the largest sunspot groups in recent history is crossing the Sun. \n\nActive Region 4478 is not only big -- it's violent, showing tangled magnetic fields capable of throwing off huge clouds of particles into the\nSolar System. \n\nSome of these CMEs might impact the Earth. \n\nAt the extreme, these \nsolar storms could cause some \nEarth-orbiting satellites to malfunction, \nthe Earth's atmosphere to slightly distort, and electrical power grids to surge. \n\nWhen impacting \nEarth's upper atmosphere, \nthese particles can produce \nbeautiful auroras.\n\nPictured here, \nAR 4478 and its dark \nsunspots \nwere captured in visible light a few days ago from \nBarcelona, \nSpain. \n\nAlmost as large as \nAR 3664 was in 2024, the \nAR 4478 sunspot group is so big that it is \nvisible just with glasses specially designed to view \nsolar eclipses. \n\nThis week, \nskygazing enthusiasts all over the globe will not only be tracking AR 4478 during the day -- but keenly watching night skies for its \ncorresponding bright auroras.", "summary": "\"The
Explanation: \nRight now, one of the largest sunspot groups in recent history is crossing the Sun. \n\nActive Region 4478 is not only big -- it's violent, showing tangled magnetic fields capable of throwing off huge clouds of particles into the\nSolar System. \n\nSome of these CMEs might impact the Earth. \n\nAt the extreme, these \nsolar storms could cause some \nEarth-orbiting satellites to malfunction, \nthe Earth's atmosphere to slightly distort, and electrical power grids to surge. \n\nWhen impacting \nEarth's upper atmosphere, \nthese particles can produce \nbeautiful auroras.\n\nPictured here, \nAR 4478 and its dark \nsunspots \nwere captured in visible light a few days ago from \nBarcelona, \nSpain. \n\nAlmost as large as \nAR 3664 was in 2024, the \nAR 4478 sunspot group is so big that it is \nvisible just with glasses specially designed to view \nsolar eclipses. \n\nThis week, \nskygazing enthusiasts all over the globe will not only be tracking AR 4478 during the day -- but keenly watching night skies for its \ncorresponding bright auroras.", "image": null, "banner_image": null, "date_published": "2026-06-28T03:00:00Z", "date_modified": "2026-06-28T03:00:00Z", "authors": ["Jerry Bonnell (UMCP)"], "tags": [], "language": null, "attachments": ["\n {\"url\": string, \n 'mime_type': string, \n 'title': strinrg,\n 'size_in_bytes': int,\n 'duration_in_seconds': int\n "]}, {"id": "https://apod.nasa.gov/apod/ap260627.html", "url": "https://apod.nasa.gov/apod/ap260627.html", "external_url": null, "title": "Mars Marathon by Perseverance", "content_text": "", "content_html": "\"See
Explanation: \n\nIn this recent HiRISE\nview from the Mars Reconnaissance Orbiter,\nthe little green dot indicated on the surface of the big Red Planet is the\nPerseverance\nMars rover.\n\nRecorded on June 13, the car-sized, six-wheeled robot was imaged\na day before completing a Martian marathon,\ntraveling a total distance of 26.218 miles\n(42.195 kilometers)\nsince it began exploring the surface of Mars.\n\nThat equivalent marathon distance was achieved by Perseverance on its\nmission sol (Martian day) 1,890, after about 5 Earth years\nand 4 Earth months of driving.\n\nPerseverance is continuing to hunt\nfor biosignatures.\n\nIn the HiRISE image, the Mars rover's tracks\ncan be seen leading to\nits location\nin an area west of its\nlanding site in Jezero crater near an\nancient river delta.", "summary": "\"See
Explanation: \n\nIn this recent HiRISE\nview from the Mars Reconnaissance Orbiter,\nthe little green dot indicated on the surface of the big Red Planet is the\nPerseverance\nMars rover.\n\nRecorded on June 13, the car-sized, six-wheeled robot was imaged\na day before completing a Martian marathon,\ntraveling a total distance of 26.218 miles\n(42.195 kilometers)\nsince it began exploring the surface of Mars.\n\nThat equivalent marathon distance was achieved by Perseverance on its\nmission sol (Martian day) 1,890, after about 5 Earth years\nand 4 Earth months of driving.\n\nPerseverance is continuing to hunt\nfor biosignatures.\n\nIn the HiRISE image, the Mars rover's tracks\ncan be seen leading to\nits location\nin an area west of its\nlanding site in Jezero crater near an\nancient river delta.", "image": null, "banner_image": null, "date_published": "2026-06-27T03:00:00Z", "date_modified": "2026-06-27T03:00:00Z", "authors": ["Jerry Bonnell (UMCP)"], "tags": [], "language": null, "attachments": ["\n {\"url\": string, \n 'mime_type': string, \n 'title': strinrg,\n 'size_in_bytes': int,\n 'duration_in_seconds': int\n "]}, {"id": "https://apod.nasa.gov/apod/ap260626.html", "url": "https://apod.nasa.gov/apod/ap260626.html", "external_url": null, "title": "Milky Way Urban Style", "content_text": "", "content_html": "\"See
Explanation: \n\nIn a cosmic vista you can never see, the\nMilky Way\narcs through the night above Seoul, South Korea.\n\nRemarkably, this\nurban night skyscape\nreveals our galaxy's faintly luminous\ncentral region and dark obscuring dust clouds in spite of the\nbrilliant city lights.\n\nTo overcome the extreme\nlight pollution\nof the metropolitan area and record faint cosmic details,\nan infrared filter was used to capture the night scene in a single exposure.\n\nWhile the filter transmits predominately infrared light,\nit still passes some\nvisible light\nto give the scene a natural appearance.\n\nThe view is from Seoul's Ttukseom Hangang Park,\nwith the Han River and a well lit railway bridge across the foreground.\n\nThe 123 story Lotte World Tower looms in the distance,\nthe tallest building in South Korea.", "summary": "\"See
Explanation: \n\nIn a cosmic vista you can never see, the\nMilky Way\narcs through the night above Seoul, South Korea.\n\nRemarkably, this\nurban night skyscape\nreveals our galaxy's faintly luminous\ncentral region and dark obscuring dust clouds in spite of the\nbrilliant city lights.\n\nTo overcome the extreme\nlight pollution\nof the metropolitan area and record faint cosmic details,\nan infrared filter was used to capture the night scene in a single exposure.\n\nWhile the filter transmits predominately infrared light,\nit still passes some\nvisible light\nto give the scene a natural appearance.\n\nThe view is from Seoul's Ttukseom Hangang Park,\nwith the Han River and a well lit railway bridge across the foreground.\n\nThe 123 story Lotte World Tower looms in the distance,\nthe tallest building in South Korea.", "image": null, "banner_image": null, "date_published": "2026-06-26T03:00:00Z", "date_modified": "2026-06-26T03:00:00Z", "authors": ["Jerry Bonnell (UMCP)"], "tags": [], "language": null, "attachments": ["\n {\"url\": string, \n 'mime_type': string, \n 'title': strinrg,\n 'size_in_bytes': int,\n 'duration_in_seconds': int\n "]}, {"id": "https://apod.nasa.gov/apod/ap260625.html", "url": "https://apod.nasa.gov/apod/ap260625.html", "external_url": null, "title": "Anticrepuscular Rays over Sicily", "content_text": "", "content_html": "\"A
Explanation: \n\n The Sun has just set... in the opposite side of the sky.\n\n Pictured here are anticrepuscular rays apparently converging in the east in this image of the limestone plateau in the heart of the Hyblaean Mountains of southeastern Sicily, in Italy.\n\n How were these anticrepuscular rays formed, if the Sun wasn't there?\n\n After the Sun set (in the west, as usual) its light still illuminated a cloud higher up in the sky.\n\n Partially blocked by the cloud, the sunlight produced patterns of light and shadow, crossing the sky in parallel lines.\n\n Perspective makes it look like they converge in the east, in the same way that train tracks appear to meet in the distance.\n\n This effect can also happen at sunrise, only the directions are exchanged.\n\n In rare cases, both crepuscular and anticrepuscular rays can be seen at the same time.", "summary": "\"A
Explanation: \n\n The Sun has just set... in the opposite side of the sky.\n\n Pictured here are anticrepuscular rays apparently converging in the east in this image of the limestone plateau in the heart of the Hyblaean Mountains of southeastern Sicily, in Italy.\n\n How were these anticrepuscular rays formed, if the Sun wasn't there?\n\n After the Sun set (in the west, as usual) its light still illuminated a cloud higher up in the sky.\n\n Partially blocked by the cloud, the sunlight produced patterns of light and shadow, crossing the sky in parallel lines.\n\n Perspective makes it look like they converge in the east, in the same way that train tracks appear to meet in the distance.\n\n This effect can also happen at sunrise, only the directions are exchanged.\n\n In rare cases, both crepuscular and anticrepuscular rays can be seen at the same time.", "image": null, "banner_image": null, "date_published": "2026-06-25T03:00:00Z", "date_modified": "2026-06-25T03:00:00Z", "authors": ["Jerry Bonnell (UMCP)"], "tags": [], "language": null, "attachments": ["\n {\"url\": string, \n 'mime_type': string, \n 'title': strinrg,\n 'size_in_bytes': int,\n 'duration_in_seconds': int\n "]}, {"id": "https://apod.nasa.gov/apod/ap260622.html", "url": "https://apod.nasa.gov/apod/ap260622.html", "external_url": null, "title": "M27: The Dumbbell Nebula", "content_text": "", "content_html": "\"A
Explanation: \nIs this what will become of our Sun? Quite possibly. \n\nThe first hint of our \nSun's future \nwas discovered inadvertently in\n1764.\n\nAt that time,\nCharles Messier was compiling a list\nof diffuse objects not to be confused with comets.\n\nThe 27th object on\nMessier's list, now known as\nM27 or the Dumbbell Nebula, is a\nplanetary nebula,\none of the brightest\nplanetary nebulas on the sky and visible with binoculars\ntoward the constellation of the Fox (Vulpecula).\n\nIt takes light about 1000 years to reach us from M27, \nfeatured here in colors enhanced by red for \nhydrogen \nand blue for \noxygen.\n\nWe now know that in about 6 billion years, \nour Sun will \nshed its outer gases into a \nplanetary nebula like M27, \nwhile its remaining center will become an \nX-ray hot \nwhite dwarf star. \n\nUnderstanding the physics and significance of\nM27 was well beyond 18th century science, though.\n\nEven today, many things \nremain mysterious about\nplanetary nebulas, including how their \nintricate \nshapes are created.", "summary": "\"A
Explanation: \nIs this what will become of our Sun? Quite possibly. \n\nThe first hint of our \nSun's future \nwas discovered inadvertently in\n1764.\n\nAt that time,\nCharles Messier was compiling a list\nof diffuse objects not to be confused with comets.\n\nThe 27th object on\nMessier's list, now known as\nM27 or the Dumbbell Nebula, is a\nplanetary nebula,\none of the brightest\nplanetary nebulas on the sky and visible with binoculars\ntoward the constellation of the Fox (Vulpecula).\n\nIt takes light about 1000 years to reach us from M27, \nfeatured here in colors enhanced by red for \nhydrogen \nand blue for \noxygen.\n\nWe now know that in about 6 billion years, \nour Sun will \nshed its outer gases into a \nplanetary nebula like M27, \nwhile its remaining center will become an \nX-ray hot \nwhite dwarf star. \n\nUnderstanding the physics and significance of\nM27 was well beyond 18th century science, though.\n\nEven today, many things \nremain mysterious about\nplanetary nebulas, including how their \nintricate \nshapes are created.", "image": null, "banner_image": null, "date_published": "2026-06-22T03:00:00Z", "date_modified": "2026-06-22T03:00:00Z", "authors": ["Jerry Bonnell (UMCP)"], "tags": [], "language": null, "attachments": ["\n {\"url\": string, \n 'mime_type': string, \n 'title': strinrg,\n 'size_in_bytes': int,\n 'duration_in_seconds': int\n "]}, {"id": "https://apod.nasa.gov/apod/ap260621.html", "url": "https://apod.nasa.gov/apod/ap260621.html", "external_url": null, "title": "Keogram: The Sky in 2025", "content_text": "", "content_html": "\"An
Explanation: \nWhat if you could see the entire sky -- all at once -- for an entire year?\n\nThat, very nearly, is what is pictured here. \n\nEvery 15 seconds during 2025, an \nall-sky camera took an image of the sky over the \nNetherlands.\n\nCentral \ncolumns from these images were then aligned \nand combined to create the featured\nkeogram, with January at the top, \nDecember at the bottom, \nand the middle of the night \nrunning vertically just left of center.\n\nWhat do we see? \n\nMost obviously, the daytime \nsky is mostly blue, while the nighttime sky is mostly black. \n\nThe twelve \nlight bands \ncrossing the night sky are caused by the \nglow of the \nMoon.\n\nThe thinnest \npart\nof the black hourglass shape occurs during the summer \nsolstice, like \ntoday, \nwhen days are the longest, while the thickest part occurs at the winter \nsolstice.\n\nEquinoxes can also be located in the keogram, for example \nthe northern-spring \nequinox from one year ago is about \nthree-quarters of the way up.", "summary": "\"An
Explanation: \nWhat if you could see the entire sky -- all at once -- for an entire year?\n\nThat, very nearly, is what is pictured here. \n\nEvery 15 seconds during 2025, an \nall-sky camera took an image of the sky over the \nNetherlands.\n\nCentral \ncolumns from these images were then aligned \nand combined to create the featured\nkeogram, with January at the top, \nDecember at the bottom, \nand the middle of the night \nrunning vertically just left of center.\n\nWhat do we see? \n\nMost obviously, the daytime \nsky is mostly blue, while the nighttime sky is mostly black. \n\nThe twelve \nlight bands \ncrossing the night sky are caused by the \nglow of the \nMoon.\n\nThe thinnest \npart\nof the black hourglass shape occurs during the summer \nsolstice, like \ntoday, \nwhen days are the longest, while the thickest part occurs at the winter \nsolstice.\n\nEquinoxes can also be located in the keogram, for example \nthe northern-spring \nequinox from one year ago is about \nthree-quarters of the way up.", "image": null, "banner_image": null, "date_published": "2026-06-21T03:00:00Z", "date_modified": "2026-06-21T03:00:00Z", "authors": ["Jerry Bonnell (UMCP)"], "tags": [], "language": null, "attachments": ["\n {\"url\": string, \n 'mime_type': string, \n 'title': strinrg,\n 'size_in_bytes': int,\n 'duration_in_seconds': int\n "]}, {"id": "https://apod.nasa.gov/apod/ap260620.html", "url": "https://apod.nasa.gov/apod/ap260620.html", "external_url": null, "title": "Daytime Moon Meets Evening Star", "content_text": "", "content_html": "\"See
Explanation: \n\nVenus is now appearing on\nthe celestial stage\nas Earth's brilliant evening star, performing with\nthe Moon, other wandering planets, and bright stars\nin western skies.\n\nFor evening sky gazers\non June 17, the celestial beacon rose after sunset close by\na young, slender, crescent Moon.\n\nBut from some locations the Moon could be seen to occult or pass in\nfront of Venus.\n\nAnd from a backyard observatory in\nsouthern British Columbia, Canada, the\nlunar occultation was played out in daylight.\n\nThis stunning telescopic snapshot captured\na scene in dramatically cloudy skies,\nfollowing Venus' hour long disappearance,\nas the evening star emerged beyond the bright lunar limb.", "summary": "\"See
Explanation: \n\nVenus is now appearing on\nthe celestial stage\nas Earth's brilliant evening star, performing with\nthe Moon, other wandering planets, and bright stars\nin western skies.\n\nFor evening sky gazers\non June 17, the celestial beacon rose after sunset close by\na young, slender, crescent Moon.\n\nBut from some locations the Moon could be seen to occult or pass in\nfront of Venus.\n\nAnd from a backyard observatory in\nsouthern British Columbia, Canada, the\nlunar occultation was played out in daylight.\n\nThis stunning telescopic snapshot captured\na scene in dramatically cloudy skies,\nfollowing Venus' hour long disappearance,\nas the evening star emerged beyond the bright lunar limb.", "image": null, "banner_image": null, "date_published": "2026-06-20T03:00:00Z", "date_modified": "2026-06-20T03:00:00Z", "authors": ["Jerry Bonnell (UMCP)"], "tags": [], "language": null, "attachments": ["\n {\"url\": string, \n 'mime_type': string, \n 'title': strinrg,\n 'size_in_bytes': int,\n 'duration_in_seconds': int\n "]}]}