Datasets:

omnianasa
/

nasa-apod-metadata

date stringdate 1996-01-01 00:00:00 2024-12-31 00:00:00	title stringlengths 4 68	explanation stringlengths 37 1.85k ⌀	file_name stringlengths 19 83	url stringlengths 41 98
2003-01-01	NGC 6960: The Witch's Broom Nebula	Ten thousand years ago, before the dawn of recorded human history, a new light must suddenly have appeared in the night sky and faded after a few weeks. Today we know this light was an exploding star and record the colorful expanding cloud as the Veil Nebula. Pictured above is the west end of the Veil Nebula known te...	2003-01-01_NGC_6960:_The_Witch's_Broom_Nebula.jpg	https://apod.nasa.gov/ap…6960_tan_big.jpg
2003-01-02	Mt. Etna Eruption Plume	Mt. Etna has been erupting for hundreds of thousands of years. In late October of last year, however, earthquakes triggered a particularly vigorous outburst from this well known volcano on the Italian island of Sicily. Local schools were closed and air-traffic re-routed as hot lava poured out and ash spewed out and s...	2003-01-02_Mt._Etna_Eruption_Plume.jpg	https://apod.nasa.gov/ap…etna_iss_big.jpg
2003-01-03	POX 186: Not So Long Ago	Not so long ago and not so far, far away, a galaxy was born. Seen in this Hubble Space Telescope image, the island universe of stars, gas, and dust cataloged as POX 186 is a mere 68 million light-years distant toward an uncrowded region in the constellation Virgo. POX 186 is truly dwarfed by galaxies like our own Milky...	2003-01-03_POX_186:_Not_So_Long_Ago.jpg	https://apod.nasa.gov/ap…186_hst_full.jpg
2003-01-04	A Magellanic Starfield	Stars of many types and colors are visible in this Hubble Space Telescope close-up of a starfield in the Large Magellanic Cloud (LMC). Over 10,000 stars are visible -- the brightest of which are giant stars. Were our Sun at the distance of these stars, about 170,000 light-years, it would hardly be discernable. By co...	2003-01-04_A_Magellanic_Starfield.jpg	https://apod.nasa.gov/ap…ield_hst_big.jpg
2003-01-05	Atlantis to Orbit	Birds don't fly this high. Airplanes don't go this fast. The Statue of Liberty weighs less. No species other than human can even comprehend what is going on, nor could any human just a millennium ago. The launch of a rocket bound for space is an event that inspires awe and challenges description. Pictured above, t...	2003-01-05_Atlantis_to_Orbit.jpg	https://apod.nasa.gov/ap…h_sts104_big.jpg
2003-01-06	Shadow Cone of a Total Solar Eclipse	Sometimes, during a total eclipse of the Sun, a strange shadow of darkness can be seen stretching off into the distance. Called a shadow cone, they are visible because the Earth's atmosphere is not completely transparent, scattering sunlight and hence appearing blue during the day. Shadow cones are particularly drama...	2003-01-06_Shadow_Cone_of_a_Total_Solar_Eclipse.jpg	https://apod.nasa.gov/ap…one2_staiger.jpg
2003-01-07	Open Star Cluster M38	Open cluster M38 can be seen with binoculars toward the constellation of Auriga. M38 is considered an intermediately rich open cluster of stars, each of which is about 200 million years old. Located in the disk of our Milky Way galaxy, M38 is still young enough to house many bright blue stars, although it's brightest...	2003-01-07_Open_Star_Cluster_M38.jpg	https://apod.nasa.gov/ap…m38_noao_big.jpg
2003-01-08	X-Rays from the Galactic Core	Using the orbiting Chandra X-ray Observatory, astronomers have taken this long look at the core of our Milky Way galaxy, some 26,000 light-years away. The spectacular false-color view spans about 130 light-years. It reveals an energetic region rich in x-ray sources and high-lighted by the central source, Sagittarius A*...	2003-01-08_X-Rays_from_the_Galactic_Core.jpg	https://apod.nasa.gov/ap…ore_cxo_full.jpg
2003-01-09	Abell 1689 Warps Space	Two billion light-years away, galaxy cluster Abell 1689 is one of the most massive objects in the Universe. In this view from the Hubble Space Telescope's Advanced Camera for Surveys, Abell 1689 is seen to warp space as predicted by Einstein's theory of gravity -- bending light from individual galaxies which lie behind...	2003-01-09_Abell_1689_Warps_Space.jpg	https://apod.nasa.gov/ap…_hstacs_full.jpg
2003-01-10	The Crab that Played with the Planet	Wandering through the constellation Taurus, Saturn made its closest approach to planet Earth last month, tilting its lovely rings toward appreciative skygazers while rising high in midnight skies. On January 4th and 5th, Saturn also crossed in front of the high and far-off Crab Nebula (M1), a cosmic cloud of debris fro...	2003-01-10_The_Crab_that_Played_with_the_Planet.jpg	https://apod.nasa.gov/ap…_wodaski_big.jpg
2003-01-11	Apollo 17: Boulder in Stereo	Humans left the Moon over thirty years ago, but donning red-blue glasses (red for the left eye) you can share this excellent stereo perspective view of their last stomping ground. Recorded by Eugene Cernan, the scene depicts his fellow astronaut and geologist Harrison Schmitt next to a large split boulder on the floor ...	2003-01-11_Apollo_17:_Boulder_in_Stereo.jpg	https://apod.nasa.gov/ap…ntuyne_full1.jpg
2003-01-12	A Spherule from Outer Space	When a meteorite strikes the Moon, the energy of the impact melts some of the splattering rock, a fraction of which might cool into tiny glass beads. Many of these glass beads were present in lunar soil samples returned to Earth by the Apollo missions. Pictured above is one such glass spherule that measures only a qu...	2003-01-12_A_Spherule_from_Outer_Space.jpg	https://apod.nasa.gov/ap…apollo11_big.jpg
2003-01-13	The Dumbbell Nebula in Hydrogen and Oxygen	The first hint of what will become of our Sun was discovered inadvertently in 1764. At that time, Charles Messier was compiling a list of "annoying" diffuse objects not to be confused with "interesting" comets. The 27th object on Messier's list, now known as M27 or the Dumbbell Nebula, is a planetary nebula, the type...	2003-01-13_The_Dumbbell_Nebula_in_Hydrogen_and_Oxygen.jpg	https://apod.nasa.gov/ap…lho_noao_big.jpg
2003-01-14	0313-192: The Wrong Galaxy	Centered above is distant galaxy 0313-192, some one billion light-years away. Radio emission from the galaxy has been mapped by the National Radio Astronomy Observatory's Very Large Array and is shown in red, composited with a visible light image from the Hubble Space Telescope's new Advanced Camera for Surveys. Dust l...	2003-01-14_0313-192:_The_Wrong_Galaxy.jpg	https://apod.nasa.gov/ap…mp_keel_full.jpg
2003-01-15	Ringed Planet Uranus	Yes it does look like Saturn, but Saturn is only one of four giant ringed planets in our Solar System. And while Saturn has the brightest rings, this system of rings and moons actually belongs to planet Uranus, imaged here in near-infrared light by the Antu telescope at the ESO Paranal Observatory in Chile. Since gas g...	2003-01-15_Ringed_Planet_Uranus.jpg	https://apod.nasa.gov/ap…ings_eso_big.jpg
2003-01-16	NGC 1700: Elliptical Galaxy and Rotating Disk	In spiral galaxies, majestic winding arms of young stars and interstellar gas and dust rotate in a disk around a bulging galactic nucleus. Elliptical galaxies seem to be simpler, randomly swarming with old stars and lacking gas and dust. So astronomers were excited to find that NGC 1700, a young elliptical galaxy about...	2003-01-16_NGC_1700:_Elliptical_Galaxy_and_Rotating_Disk.jpg	https://apod.nasa.gov/ap…700_cxc_full.jpg
2003-01-17	Stars and the Bubble Nebula	Seemingly adrift in a cosmic sea of stars and gas, this delicate, floating apparition is cataloged as NGC 7635 -- The Bubble Nebula. In this wide-angle view, the Bubble nebula lies at the center of a larger complex of shocked glowing gas about 11,000 light-years distant in the fair constellation Cassiopeia. NGC 7635 re...	2003-01-17_Stars_and_the_Bubble_Nebula.jpg	https://apod.nasa.gov/ap…35_lula_full.jpg
2003-01-18	Filaments in the Cygnus Loop	Subtle and delicate in appearance, these are filaments of shocked interstellar gas -- part of the expanding blast wave from a violent stellar explosion. Recorded in November 1997 with the Wide Field and Planetary Camera 2 on board the Hubble Space Telescope, the picture is a closeup of a supernova remnant known as the ...	2003-01-18_Filaments_in_the_Cygnus_Loop.jpg	https://apod.nasa.gov/ap…op_blair_big.gif
2003-01-19	Fullerenes as Miniature Cosmic Time Capsules	Scientists have found, unexpectedly, tiny time capsules from billions of years in the past. The discovery involves small molecules that can apparently become trapped during the formation of large enclosed molecules known as fullerenes, or buckyballs. Luann Becker (UCSB) and collaborators recently found fullerenes in...	2003-01-19_Fullerenes_as_Miniature_Cosmic_Time_Capsules.jpg	https://apod.nasa.gov/ap…eardmore_big.gif
2003-01-20	Io at Sunset	How tall are mountains on Jupiter's moon Io? One way to find out is to view them at sunset. Tall structures facing the Sun are then better-lit and cast long shadows. The above image highlights Mongibello Mons on the far left, a sharp ridge rising so high it would rank among the highest mountains on Earth. The viole...	2003-01-20_Io_at_Sunset.jpg	https://apod.nasa.gov/ap…_galileo_big.gif
2003-01-21	The Reflecting Dust Clouds of Orion	In the vast Orion Molecular Cloud complex, several bright blue nebulas are particularly apparent. Pictured above are two of the most prominent reflection nebulas - dust clouds lit by the reflecting light of bright embedded stars. The more famous nebula is M78, on the upper right, cataloged over 200 years ago. On the...	2003-01-21_The_Reflecting_Dust_Clouds_of_Orion.jpg	https://apod.nasa.gov/ap…1/m78_dv_big.jpg
2003-01-22	M11: The Wild Duck Cluster	Many stars like our Sun were formed in open clusters. The above pictured open cluster, M11, contains thousands of stars and is just over five thousand light years distant. The stars in this cluster all formed together about 250 million years ago. The bright young stars in M11 appear blue. Open clusters, also called...	2003-01-22_M11:_The_Wild_Duck_Cluster.jpg	https://apod.nasa.gov/ap…m11_cfht_big.jpg
2003-01-23	Launch of the Sun Pillar	On January 16, NASA's space shuttle Columbia roared into blue morning skies above Kennedy Space Center on STS-107, the first shuttle mission of 2003. But this is not a picture of that launch! It was taken on the morning of January 16 though, at sunrise, looking eastward toward Lake Ontario from just outside of Caledon,...	2003-01-23_Launch_of_the_Sun_Pillar.jpg	https://apod.nasa.gov/ap…_kangas_full.jpg
2003-01-24	Seyfert's Sextet	Known as Seyfert's Sextet, this intriguing group of galaxies lies in the head portion of the split constellation Serpens. The sextet actually contains only four interacting galaxies, though. Near the center of this Hubble Space Telescope picture, the small face-on spiral galaxy lies in the distant background and appear...	2003-01-24_Seyfert's_Sextet.jpg	https://apod.nasa.gov/ap…tet_hst_full.jpg
2003-01-25	Palomar 13's Last Stand	Globular star cluster Palomar 13 has roamed the halo of our Milky Way Galaxy for the last 12 billion years. The apparently sparse cluster of stars just left of center in this composite color digital image, it is one of the smallest, faintest globular clusters known. (The bright foreground star near bottom is unrelated ...	2003-01-25_Palomar_13's_Last_Stand.jpg	https://apod.nasa.gov/ap…1/p13_siegel.jpg
2003-01-26	The Lyman Alpha Forest	We live in a forest. Strewn throughout the universe are "trees" of hydrogen gas that absorb light from distant objects. These gas clouds leave numerous absorption lines in a distant quasar's spectra, together called the Lyman-alpha forest. Distant quasars appear to be absorbed by many more Lyman-alpha clouds than ne...	2003-01-26_The_Lyman_Alpha_Forest.jpg	https://apod.nasa.gov/ap…lpha_gc3_big.gif
2003-01-27	BHR 71: Stars, Clouds, and Jets	What is happening to molecular cloud BHR 71? Quite possible, a binary star system is forming inside. Most stars in our Galaxy are part of binary star systems, but few have ever been seen in formation. Recent observations of dust-darkened Bok Globule BHR 71, however, show evidence for two young stars forming deep in ...	2003-01-27_BHR_71:_Stars,_Clouds,_and_Jets.jpg	https://apod.nasa.gov/ap…hr71_vlt_big.jpg
2003-01-28	The Lost World of Lake Vida	A lake hidden beneath 19 meters of ice and gravel has been found near the bottom of the world that might contain an ecosystem completely separate from our own. In a modern version of Sir Arthur Conan Doyle's classic book Lost World, scientists are now plotting a mission to drill down into the lake and take out a small...	2003-01-28_The_Lost_World_of_Lake_Vida.jpg	https://apod.nasa.gov/ap…ida_lter_big.jpg
2003-01-29	Orion's Horsehead Nebula	The Horsehead Nebula is one of the most famous nebulae on the sky. It is visible as the dark indentation to the red emission nebula seen above and to the right of center in the above photograph. The bright star on the left is located in the belt of the familiar constellation of Orion. The horse-head feature is dark b...	2003-01-29_Orion's_Horsehead_Nebula.jpg	https://apod.nasa.gov/ap…head_tan_big.jpg
2003-01-30	Comet Kudo-Fujikawa: Days in the Sun	Cruising through the inner Solar System, new Comet Kudo-Fujikawa reached perihelion, its closest approach to the Sun, yesterday, January 29. Passing within 28.4 million kilometers of the Sun, this comet came much closer than innermost planet Mercury basking only 57.9 million kilometers from our parent star. So close to...	2003-01-30_Comet_Kudo-Fujikawa:_Days_in_the_Sun.jpg	https://apod.nasa.gov/ap…_c2soho_full.jpg
2003-01-31	Auroral Rocket Launch	In this striking image, a rocket climbs skyward toward an expansive green auroral display in the first launch of 2003 from the University of Alaska's Poker Flat Research Range. Recorded on January 27th, the view from Cleary Summit near Fairbanks, Alaska shows the fiery tracks of both solid fuel stages of the Black Bran...	2003-01-31_Auroral_Rocket_Launch.jpg	https://apod.nasa.gov/ap…johnson_full.jpg
2003-02-01	The Nebula And The Neutron Star	The lonely RX J1856.5-3754 was formed from the collapsed core of an exploding star. At a distance of 180 light-years it is the closest known neutron star. More massive than the Sun but only 20 kilometers across, this tiny stellar juggernaut plows through the hydrogen gas and dust clouds of interstellar space at about 2...	2003-02-01_The_Nebula_And_The_Neutron_Star.jpg	https://apod.nasa.gov/ap…bula_eso_big.jpg
2003-02-02	Molecular Cloud Barnard 68	Where did all the stars go? What used to be considered a hole in the sky is now known to astronomers as a dark molecular cloud. Here, a high concentration of dust and molecular gas absorb practically all the visible light emitted from background stars. The eerily dark surroundings help make the interiors of molecula...	2003-02-02_Molecular_Cloud_Barnard_68.jpg	https://apod.nasa.gov/ap…rd68_vlt_big.jpg
2003-02-03	Space Shuttle and Crew Lost During Re-Entry	Saturday morning, the Space Shuttle Columbia broke up during re-entry. Pictured above is the seven-member crew that was lost. True space pioneers, they were, left to right, David M. Brown, Rick D. Husband, Laurel B. Clark, Kalpana Chawla, Michael P. Anderson, William C. McCool, and Ilan Ramon. As debris from the shu...	2003-02-03_Space_Shuttle_and_Crew_Lost_During_Re-Entry.jpg	https://apod.nasa.gov/ap…olumbia_s107.jpg
2003-02-04	Wisps of the Veil Nebula	These wisps of gas are all that remain visible of a Milky Way star. Many thousands of years ago that star exploded in a supernova leaving the Veil Nebula, pictured above. At the time, the expanding cloud was likely as bright as a crescent Moon toward the constellation of Cygnus, visible for weeks to people living at t...	2003-02-04_Wisps_of_the_Veil_Nebula.jpg	https://apod.nasa.gov/ap…odriguss_big.jpg
2003-02-05	Unusual Gullies and Channels on Mars	What could have formed these unusual channels? Inside Newton Basin on Mars, numerous narrow channels run from the top down to the floor. The above picture covers a region spanning about 1500 meters across. These and other gullies have been found on Mars in recent high-resolution pictures taken by the orbiting Mars G...	2003-02-05_Unusual_Gullies_and_Channels_on_Mars.jpg	https://apod.nasa.gov/ap…ies3_mgs_big.jpg
2003-02-06	X-Rays from M83	Bright and beautiful spiral galaxy M83 lies a mere twelve million light-years from Earth, toward the headstrong constellation Hydra. Sweeping spiral arms, prominent in visible light images, lend this galaxy its popular moniker -- the Southern Pinwheel. In fact, the spiral arms are still apparent in this Chandra Observa...	2003-02-06_X-Rays_from_M83.jpg	https://apod.nasa.gov/ap…m83_cxc_full.jpg
2003-02-07	Orion on Film	Orion, the Hunter, is one of the most easily recognizable constellations in planet Earth's night sky. But Orion's stars and nebulae don't look quite as colorful to the eye as they do in this lovely photograph, taken last month from Vekol Ranch south of Phoenix, Arizona, USA. The celestial scene was recorded in a five m...	2003-02-07_Orion_on_Film.jpg	https://apod.nasa.gov/ap…pinelli_full.jpg
2003-02-08	AB Aurigae: How To Make Planets	This enhanced Hubble Space Telescope image shows in remarkable detail the inner portion of the disk of dust and gas surrounding the star AB Aurigae. Knots of material, visible here for the first time, may well represent an early stage of a process which could result in the formation of planets over the next few million...	2003-02-08_AB_Aurigae:_How_To_Make_Planets.jpg	https://apod.nasa.gov/ap…igae_hst_big.jpg
2003-02-09	COBE Dipole: Speeding Through the Universe	Our Earth is not at rest. The Earth moves around the Sun. The Sun orbits the center of the Milky Way Galaxy. The Milky Way Galaxy orbits in the Local Group of Galaxies. The Local Group falls toward the Virgo Cluster of Galaxies. But these speeds are less than the speed that all of these objects together move rela...	2003-02-09_COBE_Dipole:_Speeding_Through_the_Universe.jpg	https://apod.nasa.gov/ap…302/dip_cobe.gif
2003-02-10	Comet NEAT Approaches the Sun	A comet may likely become visible to the unaided eye over the next few days above the horizon where the Sun has just set. Comet NEAT (C/ 2002 V1), discovered last November, has brightened dramatically as it approached the Sun. Over the next few days, the quickly setting comet could appear as bright as second magnitud...	2003-02-10_Comet_NEAT_Approaches_the_Sun.jpg	https://apod.nasa.gov/ap…t_spenko_big.jpg
2003-02-11	Dumbbell Nebula Close-Up from Hubble	What causes unusual knots of gas and dust in planetary nebulas? Seen previously in the Ring Nebula, the Helix Nebula, and NGC 2392, the knots' existence was not predicted previously and still not well understood. Pictured above is a newly released image of the Dumbbell Nebula by the Hubble Space Telescope showing det...	2003-02-11_Dumbbell_Nebula_Close-Up_from_Hubble.jpg	https://apod.nasa.gov/ap…/m27_hst_big.jpg
2003-02-12	WMAP Resolves the Universe	Analyses of a new high-resolution map of microwave light emitted only 380,000 years after the Big Bang appear to define our universe more precisely than ever before. The eagerly awaited results from the orbiting Wilkinson Microwave Anisotropy Probe resolve several long-standing disagreements in cosmology rooted in les...	2003-02-12_WMAP_Resolves_the_Universe.jpg	https://apod.nasa.gov/ap…sky_wmap_big.jpg
2003-02-13	The Eagle Nebula from CFHT	Bright blue stars are still forming in the dark pillars of the Eagle Nebula. Made famous by a picture from the Hubble Space Telescope in 1995, the Eagle Nebula shows the dramatic process of star formation. To the upper right of the nebula in the above picture lies the heart of the open cluster M16. The bright blue s...	2003-02-13_The_Eagle_Nebula_from_CFHT.jpg	https://apod.nasa.gov/ap…m16_cfht_big.jpg
2003-02-14	The Heart in NGC 346	Yes, it's Valentine's Day (!) and looking toward star cluster NGC 346 in our neighboring galaxy the Small Magellanic Cloud, astronomers have noted this heart-shaped cloud of hot, x-ray emitting gas in the cluster's central region. The false-color Chandra Observatory x-ray image also shows a strong x-ray source just abo...	2003-02-14_The_Heart_in_NGC_346.jpg	https://apod.nasa.gov/ap…346_cxo_full.jpg
2003-02-15	Happy Birthday Jules Verne	One hundred seventy-five years ago (on February 8th), Jules Verne was born in Nantes, France. Inspired by a lifelong fascination with machines, Verne wrote visionary works about "Extraordinary Voyages" including such terrestrial travels as Around the World in 80 Days, Journey to the Centre of the Earth, and Twenty Thou...	2003-02-15_Happy_Birthday_Jules_Verne.jpg	https://apod.nasa.gov/ap…apollo11_big.jpg
2003-02-16	Southwest Mercury	The planet Mercury resembles a moon. Mercury's old surface is heavily cratered like many moons. Mercury is larger than most moons but smaller than Jupiter's moon Ganymede and Saturn's moon Titan. Mercury is much denser and more massive than any moon, though, because it is made mostly of iron. In fact, the Earth is t...	2003-02-16_Southwest_Mercury.jpg	https://apod.nasa.gov/ap…erc4_m10_big.gif
2003-02-17	Universe Age from Microwave Background	The above sky map tells us the universe is 13.7 billion years old -- but how? At first look, one only sees the microwave glow of gas from our Milky Way Galaxy, coded red, and a spotty pattern of microwaves emitted from the early universe, coded in gray. The gray cosmic microwave background is light that used to bounce...	2003-02-17_Universe_Age_from_Microwave_Background.jpg	https://apod.nasa.gov/ap…axy_wmap_big.jpg
2003-02-18	Candor and Ophir Chasmata	First imaged by the Mariner 9 spacecraft, Valles Marineris, the grand canyon of Mars, is a system of enormous depressions called chasmata that stretch some 4,000 kilometers along the Martian equator. Looking north over the canyon's central regions, Candor chasma lies in the foreground of this spectacular view with the ...	2003-02-18_Candor_and_Ophir_Chasmata.jpg	https://apod.nasa.gov/ap…_viking_full.jpg
2003-02-19	Pauli Exclusion Principle: Why You Don't Implode	Why doesn't matter just bunch up? The same principle that keeps neutron stars and white dwarf stars from imploding also keeps people from imploding and makes normal matter mostly empty space. The observed reason is known as the Pauli Exclusion Principle. The principle states that identical fermions -- one type of fu...	2003-02-19_Pauli_Exclusion_Principle:_Why_You_Don't_Implode.jpg	https://apod.nasa.gov/ap…lusion_hulet.jpg
2003-02-20	Cold Wind from the Boomerang Nebula	A cold wind blows from the central star of the Boomerang Nebula. Seen here in a detailed false-color image recorded in 1998 by the Hubble Space Telescope, the nebula lies about 5,000 light-years away towards the grand southern constellation of Centaurus. The symmetric cloud appears to have been created by a high-speed ...	2003-02-20_Cold_Wind_from_the__Boomerang_Nebula.jpg	https://apod.nasa.gov/ap…gneb_hst_big.jpg
2003-02-21	Melting Snow and the Gullies of Mars	Tantalizing images of gullies on Mars have offered striking evidence for recent flows of liquid water. But Mars is too cold and its atmosphere too thin for liquid water to exist on the surface. Still a new and compelling explanation for gullies carved by liquid water was inspired by this recently released image from th...	2003-02-21_Melting_Snow_and_the_Gullies_of_Mars.jpg	https://apod.nasa.gov/ap…_odyssey_big.jpg
2003-02-22	Infrared Saturn	This delightfully detailed false-color image of Saturn was taken in January 1998 by the orbiting Hubble Space Telescope. The picture is a combination of three images from Hubble's NICMOS instrument and shows the lovely ringed planet in reflected infrared sunlight. Different colors indicated varying heights and composit...	2003-02-22_Infrared_Saturn.jpg	https://apod.nasa.gov/ap…8_nicmos_big.jpg
2003-02-23	A Twisted Solar Eruptive Prominence	A huge eruptive prominence is seen moving out from our Sun in this condensed half-hour time-lapse sequence. Ten Earths could easily fit in the "claw" of this seemingly solar monster. This large prominence, though, is significant not only for its size, but its shape. The twisted figure eight shape indicates that a co...	2003-02-23_A_Twisted_Solar_Eruptive_Prominence.jpg	https://apod.nasa.gov/ap…1743_eit_big.gif
2003-02-24	Comet Neat Passes an Erupting Sun	As Comet NEAT flared last week, the Sun roared. Just as the comet swooped inside the orbit of Mercury and developed a long and flowing tail of gas and dust, the Sun emitted a huge Coronal Mass Ejection (CME). Neither the fortuitous hot ball of solar gas nor the intense glare of sunlight appeared to disrupt the comet'...	2003-02-24_Comet_Neat_Passes_an_Erupting_Sun.jpg	https://apod.nasa.gov/ap…cme_soho_big.jpg
2003-02-25	M42: Wisps of the Orion Nebula	The Great Nebula in Orion, an immense, nearby starbirth region, is probably the most famous of all astronomical nebulas. Here, glowing gas surrounds hot young stars at the edge of an immense interstellar molecular cloud only 1500 light-years away. In the above deep image, faint wisps and sheets of dust and gas are pa...	2003-02-25_M42:_Wisps_of_the_Orion_Nebula.jpg	https://apod.nasa.gov/ap…_gleason_big.jpg
2003-02-26	Anticrepuscular Rays Over Horseshoe Canyon	What's happening over the horizon? Although the scene may appear somehow supernatural, nothing more unusual is occurring than a setting Sun and some well placed clouds. Pictured above are anticrepuscular rays. To understand them, start by picturing common crepuscular rays that are seen any time that sunlight pours t...	2003-02-26_Anticrepuscular_Rays_Over_Horseshoe_Canyon.jpg	https://apod.nasa.gov/ap…peterson_big.jpg
2003-02-27	When Moons and Shadows Dance	It's no wonder Jupiter is a favorite target for even modest earthbound telescopes. The most massive planet in the solar system with four of the largest moons also boasts the famous Great Red Spot, a giant hurricane-like storm system over three hundred years old. Recorded on December 15, 2002 between 7:19 and 8:40 UT, o...	2003-02-27_When_Moons_and_Shadows_Dance.jpg	https://apod.nasa.gov/ap…tion_higgins.gif
2003-02-28	Fox Fur, the Unicorn, and a Christmas Tree	Glowing hydrogen gas fills this gorgeously detailed sky view centered on the variable star S Mon in the faint but fanciful constellation Monoceros, the Unicorn. A star forming region (NGC 2264), the complex jumble of cosmic gas and dust is about 2,700 light-years distant and mixes reddish emission nebulae excited by en...	2003-02-28_Fox_Fur,_the_Unicorn,_and_a_Christmas_Tree.jpg	https://apod.nasa.gov/ap…_croman_full.jpg
2003-03-01	Stereo Eros	Get out your red/blue glasses and float next to asteroid 433 Eros, 170 million kilometers away! Orbiting the Sun once every 1.8 earth-years, asteroid Eros is a diminutive 40 x 14 x 14 kilometer world of undulating horizons, craters, boulders and valleys. Its unsettling scale and bizarre shape are emphasized in this pic...	2003-03-01_Stereo_Eros.jpg	https://apod.nasa.gov/ap…reoeros_near.jpg
2003-03-02	In the Center of the Trapezium	Start with the constellation of Orion. Near Orion's belt is a fuzzy area known as the Great Nebula of Orion or M42. In this nebula is a bright star cluster known as the Trapezium, shown above. New stellar systems are forming there in gigantic globs of gas and dust known as Proplyds. Looking closely at the above pic...	2003-03-02_In_the_Center_of_the_Trapezium.jpg	https://apod.nasa.gov/ap…prop_hst_big.jpg
2003-03-03	Will the Universe End in a Big Rip?	How will our universe end? Recent speculation now includes a pervasive growing field of mysterious repulsive energy that rips virtually everything apart. Although the universe started with a Big Bang, analysis of recent cosmological measurements allows a possibility that it will end with a Big Rip. As soon as few bi...	2003-03-03_Will_the_Universe_End_in_a_Big_Rip?.jpg	https://apod.nasa.gov/ap…/puzzle_cook.jpg
2003-03-04	In the Center of the Lagoon Nebula	The center of the Lagoon Nebula is busy with the awesome spectacle of star formation. Visible in the lower left, at least two long funnel-shaped clouds, each roughly half a light-year long, have been formed by extreme stellar winds and intense energetic starlight. The tremendously bright nearby star, Hershel 36, ligh...	2003-03-04_In_the_Center_of_the_Lagoon_Nebula.jpg	https://apod.nasa.gov/ap…goon_hst_big.jpg
2003-03-05	Where People Live on Planet Earth	Where do people live on Planet Earth? Although people inhabit every continent, the highest population densities occur in Asia. Sparsely inhabited regions occur on virtually every continent, however, including the Sahara Desert in Africa, the Great White North of North America, the outback of Australia, the Amazon of...	2003-03-05_Where_People_Live_on_Planet_Earth.jpg	https://apod.nasa.gov/ap…h94_usda_big.gif
2003-03-06	Comet NEAT in Southern Skies	After last month's dramatic swoop past the Sun, Comet NEAT (C/2002 V1) appeared as a naked-eye comet, emerging from the evening twilight in planet Earth's southern skies. On March 1st, New Zealand photographer Noel Munford captured this telephoto view of the outbound comet close to the southwestern horizon against the ...	2003-03-06_Comet_NEAT_in_Southern_Skies.jpg	https://apod.nasa.gov/ap…_munford_big.jpg
2003-03-07	The Star Trails of Kilimanjaro	The night had no moon, but the stars were out. And camped at 16,000 feet on Mt. Kilimanjaro, photographer Dan Heller recorded this marvelous 3 1/2 hour long exposure. Here the landscape is lit mostly by the stars. Flashlights give the tents an erie internal radiance while the greenish glow from the distant city lights ...	2003-03-07_The_Star_Trails_of_Kilimanjaro.jpg	https://apod.nasa.gov/ap…_heller_full.jpg
2003-03-08	Solar Sail	Nearly 400 years ago astronomer Johannes Kepler observed comet tails blown by a solar breeze and suggested that vessels might likewise navigate through space using appropriately fashioned sails. It is now widely recognized that sunlight does indeed produce a force which moves comet tails and a large, reflective sail co...	2003-03-08_Solar_Sail.jpg	https://apod.nasa.gov/ap…rsail_msfc_m.jpg
2003-03-09	Farewell Jupiter	Tomorrow's picture: Big Pinwheel < \| Archive \| Index \| Search \| Calendar \| Glossary \| Education \| About APOD \| > Authors & editors: Robert Nemiroff (MTU) & Jerry Bonnell (USRA) NASA Technical Rep.: Jay Norris. Specific rights apply. A service of: LHEA at NASA / GSFC & NASA SEU Edu. Forum & Michigan Tech. U.	2003-03-09_Farewell_Jupiter.jpg	https://apod.nasa.gov/ap…_cassini_big.jpg
2003-03-10	M101: The Pinwheel Galaxy	Why do many galaxies appear as spirals? A striking example is M101, shown above, whose relatively close distance of about 22 million light years allow it to be studied in some detail. Recent evidence indicates that a close gravitational interaction with a neighboring galaxy created waves of high mass and condensed ga...	2003-03-10_M101:_The_Pinwheel_Galaxy.jpg	https://apod.nasa.gov/ap…101_cfht_big.jpg
2003-03-11	Iridescent Clouds	Why would clouds appear to be different colors? A relatively rare phenomenon known as iridescent clouds can show unusual colors vividly or a whole spectrum of colors simultaneously. These clouds are formed of small water droplets of nearly uniform size. When the Sun is in the right position and mostly hidden by thic...	2003-03-11_Iridescent_Clouds.jpg	https://apod.nasa.gov/ap…anielsen_big.jpg
2003-03-12	Lunar Farside from Apollo 11	The far side of the Moon is rough and filled with craters. By comparison, the near side of the Moon, the side we always see, is relatively smooth. Since the Moon is rotation locked to always point the same side toward Earth, humanity has only glimpsed the lunar farside recently -- last century. The light highlands o...	2003-03-12_Lunar_Farside_from_Apollo_11.jpg	https://apod.nasa.gov/ap…apollo11_big.jpg
2003-03-13	WIRO at Jupiter	Gazing out over the mountaintops from the Wyoming InfraRed Observatory (WIRO), astronomers recently recorded this bizarre looking image of the solar system's ruling planet, gas giant Jupiter. The false-color picture is a composite of images taken to test a sophisticated digital camera operating at liquid helium tempera...	2003-03-13_WIRO_at_Jupiter.jpg	https://apod.nasa.gov/ap…r_wiro8_full.jpg
2003-03-14	DEM L71: When Small Stars Explode	Large, massive stars end their furious lives in spectacular supernova explosions -- but small, low mass stars may encounter a similar fate. In fact, instead of simply cooling off and quietly fading away, some white dwarf stars in binary star systems are thought to draw enough mass from their companions to become unstab...	2003-03-14_DEM_L71:_When_Small_Stars_Explode.jpg	https://apod.nasa.gov/ap…l71_cxc_full.jpg
2003-03-15	Apollo 12: Self-Portrait	Is it art? In November of 1969, Apollo 12 astronaut-photographer Charles "Pete" Conrad recorded this masterpiece while documenting colleague Alan Bean's lunar soil collection activities on the Oceanus Procellarum. The image is dramatic and stark. Bean is faceless. The harsh environment of the Moon's Ocean of Storms is ...	2003-03-15_Apollo_12:_Self-Portrait.jpg	https://apod.nasa.gov/ap…_conrad_full.jpg
2003-03-16	NGC 253: The Sculptor Galaxy	NGC 253 is not only one of the brightest spiral galaxies visible, it is also one of the dustiest. Discovered in 1783 by Caroline Herschel in the constellation of Sculptor, NGC 253 lies only about ten million light-years distant. NGC 253 is the largest member of the Sculptor Group of Galaxies, the nearest group to our...	2003-03-16_NGC_253:_The_Sculptor_Galaxy.jpg	https://apod.nasa.gov/ap…253c_hst_big.jpg
2003-03-17	SN 1006: History's Brightest Supernova	Suddenly, in the year 1006 AD, a new star appeared in the sky. Over the course of just a few days, the rogue star became brighter than the planet Venus. The star, likely the talk of everyone who could see it, was recorded by people who lived in areas now known as China, Egypt, Iraq, Italy, Japan, and Switzerland. Th...	2003-03-17_SN_1006:_History's_Brightest_Supernova.jpg	https://apod.nasa.gov/ap…006_noao_big.jpg
2003-03-18	Coronal Holes on the Sun	The ominous, dark shapes haunting the left side of the Sun are coronal holes -- low density regions extending above the surface where the solar magnetic field opens freely into interplanetary space. Studied extensively from space since the 1960s in ultraviolet and x-ray light, coronal holes are known to be the source o...	2003-03-18_Coronal_Holes_on_the_Sun.jpg	https://apod.nasa.gov/ap…les_soho_big.gif
2003-03-19	Jupiter's Great Dark Spot	Seventeenth century astronomer Giovanni Domenico Cassini was an astute observer of Jupiter's Great Red Spot. So it seems only fitting that his namesake, the Cassini spacecraft, has enabled detailed observations of another planet-sized blemish -- Jupiter's Great Dark Spot. Unlike the Red Spot, the Great Dark Spot lies n...	2003-03-19_Jupiter's_Great_Dark_Spot.jpg	https://apod.nasa.gov/ap…sini_frame58.jpg
2003-03-20	Sunrise Analemma	Astronomically speaking, at the Equinox on March 21, 0100 UT (March 20, 8:00 PM ET) the season changes. For this Equinox the Sun rises due east as it crosses the celestial equator heading north. In celebration, consider this spectacular sunrise analemma! An analemma is the figure-8 loop you get when you mark the positi...	2003-03-20_Sunrise_Analemma.jpg	https://apod.nasa.gov/ap…mamitis_full.jpg
2003-03-21	Stars and Planets in the Halo of the Moon	Photographed on March 13th from Caledon, Ontario, Canada, a bright Moon was surrounded by this lovely halo. Planet Jupiter and stars Procyon, Castor, and Pollux also appear within the circle of lunar light. Castor and Pollux, twins in Greek Mythology, are appropriately bright stars of the constellation Gemini while Pro...	2003-03-21_Stars_and_Planets_in_the_Halo_of_the_Moon.jpg	https://apod.nasa.gov/ap…_kangas_full.jpg
2003-03-22	M57: The Ring Nebula	cept for the rings of Saturn, the Ring Nebula (M57) is probably the most famous celestial band. This planetary nebula's simple, graceful appearance is thought to be due to perspective -- our view from planet Earth looking straight into what is actually a barrel-shaped cloud of gas shrugged off by a dying central star. ...	2003-03-22_M57:_The_Ring_Nebula.jpg	https://apod.nasa.gov/ap…ring_hst_big.jpg
2003-03-23	Alpha Centauri: The Closest Star System	The closest star system to the Sun is the Alpha Centauri system. Of the three stars in the system, the dimmest -- called Proxima Centauri -- is actually the nearest star. The bright stars Alpha Centauri A and B form a close binary as they are separated by only 23 times the Earth- Sun distance - slightly greater than ...	2003-03-23_Alpha_Centauri:_The_Closest_Star_System.jpg	https://apod.nasa.gov/ap…acen_eso_big.jpg
2003-03-24	A Digital Sunset Over Europe and Africa	No single spacecraft or astronaut took this picture. It is a digital composite of archived images taken by several Earth-orbiting satellites and ocean-faring ships. Similar images can be digitally stitched together for any Earth location by John Walker's Earth and Moon Viewer website. Specifically, the daytime land ...	2003-03-24_A_Digital_Sunset_Over_Europe_and_Africa.jpg	https://apod.nasa.gov/ap…ingearth_big.jpg
2003-03-25	A Slow Explosion	Why would a gamma ray burst fade so slowly? This behavior, recorded last October, is considered a new clue into the cause of gamma-ray bursts, the most powerful explosions known in the universe. The burst, first detected by the orbiting HETE satellite and later tracked by numerous ground-based telescopes, showed an u...	2003-03-25_A_Slow_Explosion.jpg	https://apod.nasa.gov/ap…r124_hst_big.jpg
2003-03-26	A Lenticular Cloud Over Wyoming	Is that a cloud or a flying saucer? Both, although it is surely not an alien spacecraft. Lenticular clouds can be shaped like a saucer, and can fly in the sense that, like most clouds, they are composed of small water droplets that float on air. Lenticular clouds are typically formed by high winds over rugged terrai...	2003-03-26_A_Lenticular_Cloud_Over_Wyoming.jpg	https://apod.nasa.gov/ap…ar_meyer_big.jpg
2003-03-27	Light Echoes from V838 Mon	Tomorrow's picture: How bright was that supernova? < \| Archive \| Index \| Search \| Calendar \| Glossary \| Education \| About APOD \| > Authors & editors: Robert Nemiroff (MTU) & Jerry Bonnell (USRA) NASA Web Site Statements, Warnings, and Disclaimers NASA Official: Jay Norris. Specific rights apply. A service of: LHEA at...	2003-03-27_Light_Echoes_from_V838_Mon.jpg	https://apod.nasa.gov/ap…_hst_fulldec.jpg
2003-03-28	1006 AD: Supernova in the Sky	Tomorrow's picture: The Shadow < \| Archive \| Index \| Search \| Calendar \| Glossary \| Education \| About APOD \| > Authors & editors: Robert Nemiroff (MTU) & Jerry Bonnell (USRA) NASA Web Site Statements, Warnings, and Disclaimers NASA Official: Jay Norris. Specific rights apply. A service of: LHEA at NASA / GSFC & Michi...	2003-03-28_1006_AD:_Supernova_in_the_Sky.jpg	https://apod.nasa.gov/ap…6_tezel_full.jpg
2003-03-29	The Shadow of Phobos	Tomorrow's picture: Before Telescopes < \| Archive \| Index \| Search \| Calendar \| Glossary \| Education \| About APOD \| > Authors & editors: Robert Nemiroff (MTU) & Jerry Bonnell (USRA) NASA Web Site Statements, Warnings, and Disclaimers NASA Official: Jay Norris. Specific rights apply. A service of: LHEA at NASA / GSFC ...	2003-03-29_The_Shadow_of_Phobos.jpg	https://apod.nasa.gov/ap…bos3_mgs_big.jpg
2003-03-30	Beijing Ancient Observatory	Did observatories exist before telescopes? One example that still stands today is the Beijing Ancient Observatory in China. Starting in the 1400s astronomers erected large instruments here to enable them to measure star and planet positions with increasing accuracy. Pre-telescopic observatories throughout the world ...	2003-03-30_Beijing_Ancient_Observatory.jpg	https://apod.nasa.gov/ap…eijing_tobin.jpg
2003-03-31	Mt. Etna Lava Plumes	Mt. Etna has been erupting for hundreds of thousands of years. Located in Sicily, Italy, the volcano produces lava fountains over one kilometer high. Mt. Etna is not only one of the most active volcanoes on Earth, it is one of the largest, measuring over 50 kilometers at its base and rising nearly 3 kilometers high. ...	2003-03-31_Mt._Etna_Lava_Plumes.jpg	https://apod.nasa.gov/ap…na_fulle_big.jpg
2003-04-01	A New Constellation Takes Hold	A new constellation has taken hold of the sky, much to the surprise of many sky gazers. The constellation of Ollie the Owl has suddenly started dominating the southern hemisphere, as shown above. The constellation is taking the place of Wrinkles the Rhinoceros, who was unexpectedly voted off the sky by the other cons...	2003-04-01_A_New_Constellation_Takes_Hold.jpg	https://apod.nasa.gov/ap…rd_tasca_big.jpg
2003-04-02	V838 Light Echo: The Movie	What caused this outburst of V838 Mon? For reasons unknown, star V838 Mon's outer surface suddenly greatly expanded with the result that it became the brightest star in the entire Milky Way Galaxy. Then, just as suddenly, it faded. A stellar flash like this has never been seen before -- supernovas and novas expel ma...	2003-04-02_V838_Light_Echo:_The_Movie.jpg	https://apod.nasa.gov/ap…ovie_hst_big.gif
2003-04-03	Jupiter in the Hive	If you can find planet Jupiter in tonight's sky, then you can also find M44, popularly known as the Beehive star cluster. In fact, with a pair of binoculars most casual skygazers should find it easy to zero in on this celestial scene. It should be easy because after sunset Jupiter presently rules the night as the brigh...	2003-04-03_Jupiter_in_the_Hive.jpg	https://apod.nasa.gov/ap…4_tezel_full.jpg
2003-04-04	Clusters and Nebulae of the Hexagon	At first, the bright stars of the large asterism known as the (northern) Winter Hexagon might be hard to pick out in this gorgeous deep sky mosaic from December 2002. But placing your cursor over the picture will reveal the hexagon's outlines and the bright clusters and nebulae along a stunning portion of the Milky Way...	2003-04-04_Clusters_and_Nebulae_of_the_Hexagon.jpg	https://apod.nasa.gov/ap…ellinger_big.jpg
2003-04-05	The Seasons of Saturn	Since Saturn's axis is tilted as it orbits the Sun, Saturn has seasons, like those of planet Earth ... but Saturn's seasons last for over seven years. So what season is it on Saturn now? Orbiting the equator, the tilt of the rings of Saturn provides quite a graphic seasonal display. In fact, this month, Saturn's rings ...	2003-04-05_The_Seasons_of_Saturn.jpg	https://apod.nasa.gov/ap…sons_hst_big.jpg
2003-04-06	Phobos: Doomed Moon of Mars	This moon is doomed. Mars, the red planet named for the Roman god of war, has two tiny moons, Phobos and Deimos, whose names are derived from the Greek for Fear and Panic. These Martian moons may well be captured asteroids originating in the main asteroid belt between Mars and Jupiter or perhaps from even more distant...	2003-04-06_Phobos:_Doomed_Moon_of_Mars.jpg	https://apod.nasa.gov/ap…bos_vik1_big.jpg
2003-04-07	NGC 281: Cluster, Clouds, and Globules	NGC 281 is a busy workshop of star formation. Prominent features include a small open cluster of stars, a diffuse red-glowing emission nebula, large lanes of obscuring gas and dust, and dense knots of dust and gas in which stars may still be forming. The open cluster of stars IC 1590 visible around the center has fo...	2003-04-07_NGC_281:_Cluster,_Clouds,_and_Globules.jpg	https://apod.nasa.gov/ap…281_cfht_big.jpg
2003-04-08	Aurora From Space	What do auroras look like from space? From the ground, auroras dance high above clouds, frequently causing spectacular displays. The International Space Station (ISS) orbits just at the same height as many auroras, though. Therefore, sometimes it flies over them, but also sometimes it flies right through. The auror...	2003-04-08_Aurora_From_Space.jpg	https://apod.nasa.gov/ap…rora_iss_big.jpg
2003-04-09	The Egg Nebula in Polarized Light	Where is the center of the unusual Egg Nebula? Like a baby chick pecking its way out of an egg, the star in the center of the Egg Nebula is casting away shells of gas and dust as it slowly transforms itself into a white dwarf star. The Egg Nebula is a rapidly evolving pre-planetary nebula spanning about one light yea...	2003-04-09_The_Egg_Nebula_in_Polarized_Light.jpg	https://apod.nasa.gov/ap…/egg_hst_big.jpg
2003-04-10	Energized Nebula in the LMC	Blossoming in nearby galaxy the Large Magellanic Cloud (LMC), this gorgeous nebula is energized by radiation and winds from a massive star whose surface temperature approaches 100,000 degrees. The composite color image from the European Southern Observatory's Melipal telescope resolves details in the energetic nebula, ...	2003-04-10_Energized_Nebula_in_the_LMC.jpg	https://apod.nasa.gov/ap…9-2_eso_full.jpg

End of preview. Expand in Data Studio

NASA APOD Metadata

Dataset Description

This dataset is a comprehensive historical compilation of metadata from NASA's Astronomy Picture of the Day (APOD), spanning about three decades from 1996 to 2024. It consolidates daily entries containing stunning astronomical imagery paired with professional, highly descriptive explanations authored by astronomers.

This dataset serves as an excellent resource for multi-modal machine learning, natural language processing (NLP), semantic search, and automated image captioning within the scientific domain.

Dataset Summary

Data Type: Tabular / Text / Image Links
Timeframe: 1996 – 2024 (18 unique years represented natively across consolidated subsets)
Language: English (en)
License: Creative Commons Attribution 4.0 International (cc-by-4.0)

Dataset Structure

The dataset consists of rows representing individual daily APOD entries. Each row typically contains the following features:

Feature Name	Data Type	Description
`date`	`Date` (YYYY-MM-DD)	The publication date of the APOD entry.
`title`	`string`	The official title of the image or phenomenon.
`explanation`	`string`	A detailed text paragraph explaining the science behind the visual.
`url`	`string`	The direct web link to the hosted image or media asset.

Use Cases & Applications

Image Captioning & Multimodal AI: Fine-tuning vision-language models (like CLIP, BLIP, or LLaVA) on dense, highly technical scientific descriptions.
Text Summarization: Training NLP models to distill long, descriptive paragraphs of cosmic data into concise titles or bulleted summaries.
Semantic Search & RAG: Building Retrieval-Augmented Generation systems for specialized aerospace and astronomical QA domains.

Data Collection & Origin

The data was collected directly from the official NASA APOD archive via automated API queries/scraping methods. Individual metadata chunks were filtered, cleaned of missing attributes, chronologically cross-referenced, and stacked into a unified, flat DataFrame.

Licensing Information

The metadata text and indexing are made available under the open CC-BY-4.0 license. Please note that while the text explanations are public domain or explicitly credited, individual images linked via the URLs may retain specific copyrights belonging to the respective amateur or professional photographers credited on the original NASA platform.

Downloads last month: 52