{"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/ap260702.html", "url": "https://apod.nasa.gov/apod/ap260702.html", "external_url": null, "title": "Sibling Supernova Remnants", "content_text": "", "content_html": "\"Against
Explanation: \n\n What happens when one of the stars in a binary goes supernova?\n\n This image combines visible (yellow), ultraviolet (purple) and infrared light (cyan, red and orange) to show two supernova remnants and their surrounding environment, about 6,000 light-years away.\n\n The younger one is the well-known Jellyfish Nebula in the center (mostly in yellow).\n\n If we could see it by eye, it would appear larger than the full moon in the sky.\n\n The filament shown in purple is part of an older, overlapping supernova remnant, G189.6+3.3.\n\n A new study used data from NASA's Fermi Gamma-ray Space Telescope to piece together their story.\n\n Astronomers believe that there were two stars in a binary system, then the first one exploded as a supernova, kicking away its companion, which also exploded as a supernova tens of thousands of years later, creating the superimposed supernova remnants we see today.\n\n The bright star on the right is actually a triple star system named Propus.", "summary": "\"Against
Explanation: \n\n What happens when one of the stars in a binary goes supernova?\n\n This image combines visible (yellow), ultraviolet (purple) and infrared light (cyan, red and orange) to show two supernova remnants and their surrounding environment, about 6,000 light-years away.\n\n The younger one is the well-known Jellyfish Nebula in the center (mostly in yellow).\n\n If we could see it by eye, it would appear larger than the full moon in the sky.\n\n The filament shown in purple is part of an older, overlapping supernova remnant, G189.6+3.3.\n\n A new study used data from NASA's Fermi Gamma-ray Space Telescope to piece together their story.\n\n Astronomers believe that there were two stars in a binary system, then the first one exploded as a supernova, kicking away its companion, which also exploded as a supernova tens of thousands of years later, creating the superimposed supernova remnants we see today.\n\n The bright star on the right is actually a triple star system named Propus.", "image": null, "banner_image": null, "date_published": "2026-07-02T03:00:00Z", "date_modified": "2026-07-02T03:00:00Z", "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/ap260701.html", "url": "https://apod.nasa.gov/apod/ap260701.html", "external_url": null, "title": "The Cotton Candy Clouds of Rho Ophiuchi", "content_text": "", "content_html": "\"A
Explanation: \nAlthough they look like cotton candy, you cannot eat these clouds! Taken in \nC\u00e1diz, Spain, \ntoday's image \nfeatures \nthe Rho Ophiuchi complex, \na rich tapestry of young and old astronomical phenomena. This colorful cloud complex is a \nnearby star-forming region containing hundreds of \nyoung stellar objects, \nincluding \nprotostars and \nT Tauri stars. \nLight from \nthe triple star system \nat its center \nreflects \noff of small dust grains to create the blue \nreflection nebula. \nUltraviolet \nlight from hot stars \nionizes \nthe surrounding hydrogen gas, creating the red \nemission nebula. \nAntares, \na red supergiant \nbig enough to engulf the Solar System\u2019s \nasteroid belt, \nlights up the yellow region. Dark \ninterstellar dust \nblocks some of the complex\u2019s color. Recent \nJWST observations \nexhibit shadows cast by hidden \ncircumstellar disks, \nthe beginning stages of planet formation. \nMessier 4, \na globular cluster almost as old as the universe, sits in the bottom right and witnesses yet \nanother chaotic burst of youth in the Milky Way.", "summary": "\"A
Explanation: \nAlthough they look like cotton candy, you cannot eat these clouds! Taken in \nC\u00e1diz, Spain, \ntoday's image \nfeatures \nthe Rho Ophiuchi complex, \na rich tapestry of young and old astronomical phenomena. This colorful cloud complex is a \nnearby star-forming region containing hundreds of \nyoung stellar objects, \nincluding \nprotostars and \nT Tauri stars. \nLight from \nthe triple star system \nat its center \nreflects \noff of small dust grains to create the blue \nreflection nebula. \nUltraviolet \nlight from hot stars \nionizes \nthe surrounding hydrogen gas, creating the red \nemission nebula. \nAntares, \na red supergiant \nbig enough to engulf the Solar System\u2019s \nasteroid belt, \nlights up the yellow region. Dark \ninterstellar dust \nblocks some of the complex\u2019s color. Recent \nJWST observations \nexhibit shadows cast by hidden \ncircumstellar disks, \nthe beginning stages of planet formation. \nMessier 4, \na globular cluster almost as old as the universe, sits in the bottom right and witnesses yet \nanother chaotic burst of youth in the Milky Way.", "image": null, "banner_image": null, "date_published": "2026-07-01T03:00:00Z", "date_modified": "2026-07-01T03:00:00Z", "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/ap260630.html", "url": "https://apod.nasa.gov/apod/ap260630.html", "external_url": null, "title": "Unusually Smooth Sections of Asteroid Itokawa", "content_text": "", "content_html": "\"Dark
Explanation: \nWhy are parts of this asteroid's surface so smooth? \n\nThe answer seems likely to do with the dynamics of an \nasteroid that is a loose \npile of rubble rather than a solid rock. \n\nThe unusual asteroid \nItokawa was visited by the \nJapanese spacecraft \nHayabusa in 2005 which imaged and \ndocumented its unusual structure and mysterious \nlack of craters. \n\nAnalyses of the border regions between smooth and rugged sections indicate that jostling of the asteroid might be creating segregation between large and small rocks near the surface, like the \nBrazil nut effect. \n\nThe robotic Hayabusa actually \ntouched down \non one of the smooth patches, dubbed the \nMUSES Sea, and collected \nsoil samples.\n\nThese samples were \nreturned to Earth and are not only \ngiving clues to the ancient history of \nthis unusual asteroid, \nbut also about the early years of our entire \nSolar System.\n\nComputer simulations show that 500-meter asteroid Itokawa may \nimpact the Earth within the next few million years.", "summary": "\"Dark
Explanation: \nWhy are parts of this asteroid's surface so smooth? \n\nThe answer seems likely to do with the dynamics of an \nasteroid that is a loose \npile of rubble rather than a solid rock. \n\nThe unusual asteroid \nItokawa was visited by the \nJapanese spacecraft \nHayabusa in 2005 which imaged and \ndocumented its unusual structure and mysterious \nlack of craters. \n\nAnalyses of the border regions between smooth and rugged sections indicate that jostling of the asteroid might be creating segregation between large and small rocks near the surface, like the \nBrazil nut effect. \n\nThe robotic Hayabusa actually \ntouched down \non one of the smooth patches, dubbed the \nMUSES Sea, and collected \nsoil samples.\n\nThese samples were \nreturned to Earth and are not only \ngiving clues to the ancient history of \nthis unusual asteroid, \nbut also about the early years of our entire \nSolar System.\n\nComputer simulations show that 500-meter asteroid Itokawa may \nimpact the Earth within the next few million years.", "image": null, "banner_image": null, "date_published": "2026-06-30T03:00:00Z", "date_modified": "2026-06-30T03:00:00Z", "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/ap260629.html", "url": "https://apod.nasa.gov/apod/ap260629.html", "external_url": null, "title": "M82: Galaxy with a Supergalactic Wind", "content_text": "", "content_html": "\"A
Explanation: \nWhy is the Cigar Galaxy billowing red smoke? \n\nM82, as this\nstarburst galaxy is also known, was stirred up by a\nrecent pass near large\nspiral galaxy\nM81. \n\nThis doesn't fully \nexplain \nthe source of the red-glowing outwardly\nexpanding gas and dust, however. \n\nEvidence indicates that this gas and dust is being\ndriven out by the combined emerging\nparticle winds of many stars, together creating a galactic\nsuperwind. \n\nThe dust particles are \nthought to originate \nin M82's interstellar medium and are actually \nsimilar in size to particles in cigar smoke. \n\nThe featured photographic mosaic combines images taken in \nvisible light from the \nHubble Space Telescope and images taken in \ninfrared light from \nJames Webb Space Telescope. \n\nIt shows the light-colored central galaxy nearly \nedge on across the \nimage center with tremendous orange and red colored \nfilaments of gas and dust \nextending both up and down. \n\nThe filaments extend for over 10,000\nlight years.\n\nThe 12-million light-year distant\nCigar Galaxy is the\nbrightest galaxy in the sky in infrared light and can be seen in visible light with a small\ntelescope towards the constellation of the Great Bear\n(Ursa Major).", "summary": "\"A
Explanation: \nWhy is the Cigar Galaxy billowing red smoke? \n\nM82, as this\nstarburst galaxy is also known, was stirred up by a\nrecent pass near large\nspiral galaxy\nM81. \n\nThis doesn't fully \nexplain \nthe source of the red-glowing outwardly\nexpanding gas and dust, however. \n\nEvidence indicates that this gas and dust is being\ndriven out by the combined emerging\nparticle winds of many stars, together creating a galactic\nsuperwind. \n\nThe dust particles are \nthought to originate \nin M82's interstellar medium and are actually \nsimilar in size to particles in cigar smoke. \n\nThe featured photographic mosaic combines images taken in \nvisible light from the \nHubble Space Telescope and images taken in \ninfrared light from \nJames Webb Space Telescope. \n\nIt shows the light-colored central galaxy nearly \nedge on across the \nimage center with tremendous orange and red colored \nfilaments of gas and dust \nextending both up and down. \n\nThe filaments extend for over 10,000\nlight years.\n\nThe 12-million light-year distant\nCigar Galaxy is the\nbrightest galaxy in the sky in infrared light and can be seen in visible light with a small\ntelescope towards the constellation of the Great Bear\n(Ursa Major).", "image": null, "banner_image": null, "date_published": "2026-06-29T03:00:00Z", "date_modified": "2026-06-29T03:00:00Z", "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/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 "]}]}