2021 Year in Review Astronomy Picture of the Day

From apod.nasa.gov

2021 December 31: JWST on the Road to L2
2021 December 30: The Further Tail of Comet Leonard
2021 December 29: Giant Storms and High Clouds on Jupiter
2021 December 28: Sun Halo over Sweden
2021 December 27: Comet Leonard behind JWST Launch Plume
2021 December 26: James Webb Space Telescope over Earth
2021 December 25: The Tail of a Christmas Comet
2021 December 24: M1: The Crab Nebula
2021 December 23: Three Planets and a Comet
2021 December 22: Launch of the IXPE Observatory
2021 December 21: Solstice Sun and Milky Way
2021 December 20: The Comet and the Fireball
2021 December 19: Planetary Alignment over Italy
2021 December 18: Stephan s Quintet
2021 December 17: Gemind of the North
2021 December 16: Geminds of the South
2021 December 15: Comet Leonard from Space
2021 December 14: HH 666: Carina Dust Pillar with Jet
2021 December 13: Meteors and Auroras over Iceland
2021 December 12: Comet Leonard Before Star Cluster M3
2021 December 11: Postcard from the South Pole
2021 December 10: Eclipse on a Polar Day
2021 December 09: A Total Eclipse of the Sun
2021 December 08: Comet Hale Bopp Over Val Parola Pass
2021 December 07: Ninety Gravitational Wave Spectrograms and Counting
2021 December 06: Space Station Silhouette on the Moon
2021 December 05: Total Solar Eclipse Below the Bottom of the World
2021 December 04: Iridescent by Moonlight
2021 December 03: Comet Leonard and the Whale Galaxy
2021 December 02: NGC 6822: Barnard s Galaxy
2021 December 01: A Blue Banded Blood Moon
2021 November 30: In Motion: Uranus and Moons
2021 November 29: The Extraordinary Spiral in LL Pegasi
2021 November 28: A High Cliff on Comet Churyumov Gerasimenko
2021 November 27: Messier 101
2021 November 26: Great Refractor and Lunar Eclipse
2021 November 25: At the Shadow’s Edge
2021 November 24: Pleiades: The Seven Sisters Star Cluster
2021 November 23: The Sun in X-rays from NuSTAR
2021 November 22: Lunar Eclipse over a Skyscraper
2021 November 21: Introducing Comet Leonard
2021 November 20: An Almost Total Lunar Eclipse
2021 November 19: NGC 281: Starless with Stars
2021 November 18: Full Moonlight
2021 November 17: NGC 3314: When Galaxies Overlap
2021 November 16: Geminids from Gemini
2021 November 15: Light Pillar over Volcanic Etna
2021 November 14: How to Identify that Light in the Sky
2021 November 13: Rosetta’s Comet in Gemini
2021 November 12: M33: The Triangulum Galaxy
2021 November 11: NGC 1333: Stellar Nursery in Perseus
2021 November 10: Video of a Green Flash
2021 November 09: All of These Space Images are Fake Except One
2021 November 08: A Filament Leaps from the Sun
2021 November 07: The Cat’s Eye Nebula in Optical and X-ray
2021 November 06: The Galaxy Between Two Friends
2021 November 05: The Dark Seahorse in Cepheus
2021 November 04: NGC 147 and NGC 185
2021 November 03: The Horsehead and Flame Nebulas
2021 November 02: SN Requiem: A Supernova Seen Three Times So Far
2021 November 01: A Waterfall and the Milky Way
2021 October 31: Dark Matter in a Simulated Universe
2021 October 30: A Rorschach Aurora
2021 October 29: Haunting the Cepheus Flare
2021 October 28: Mirach’s Ghost
2021 October 27: NGC 6995: The Bat Nebula
2021 October 26: Jupiter Rotates
2021 October 25: Road to the Galactic Center
2021 October 24: Halloween and the Ghost Head Nebula
2021 October 23: 3D Bennu
2021 October 22: A Comet and a Crab
2021 October 21: SH2-308: The Dolphin-head Nebula
2021 October 20: Lucy Launches to Eight Asteroids
2021 October 19: Palomar 6: Globular Star Cluster
2021 October 18: Earthshine Moon over Sicily
2021 October 17: The Einstein Cross Gravitational Lens
2021 October 16: The Moona Lisa
2021 October 15: NGC 289: Swirl in the Southern Sky
2021 October 14: NGC 7293: The Helix Nebula
2021 October 13: NGC 7822: Cosmic Question Mark
2021 October 12: Fireball over Lake Louise
2021 October 11: Juno Flyby of Ganymede and Jupiter
2021 October 10: Full Moon Silhouettes
2021 October 09: 50 Light years to 51 Pegasi
2021 October 08: The Double Cluster in Perseus
2021 October 07: NGC 6559: East of the Lagoon
2021 October 06: M43: Streams of Orion
2021 October 05: Sunrise at the South Pole
2021 October 04: NGC 4676: When Mice Collide
2021 October 03: The Holographic Principle and a Teapot
2021 October 02: A Light and Dusty Night
2021 October 01: The Central Milky Way from Lagoon to Pipe
2021 September 30: The Hydrogen Clouds of M33
2021 September 29: Gigantic Jet Lightning from Puerto Rico
2021 September 28: Night of the Perseids
2021 September 27: Unwrapped: Five Decade Old Lunar Selfie
2021 September 26: The Red Square Nebula
2021 September 25: The Bubble and the Star Cluster
2021 September 24: Perseid Outburst at Westmeath Lookout
2021 September 23: Harvest Moon Trail
2021 September 22: Equinox on a Spinning Earth
2021 September 21: Sun Spot Hill
2021 September 20: Lynds Dark Nebula
2021 September 19: Rings and Seasons of Saturn
2021 September 18: Rubin’s Galaxy
2021 September 17: Video: Flash on Jupiter
2021 September 16: North America and the Pelican
2021 September 15: Cyclone Paths on Planet Earth
2021 September 14: Mars Panorama 360 from Curiosity
2021 September 13: Night Sky Reflected
2021 September 12: A Spiral Aurora over Iceland
2021 September 11: Saturn at Night
2021 September 10: Rosetta’s Comet in View
2021 September 09: M16 Close Up
2021 September 08: The Deep Sky Toward Andromeda
2021 September 07: NGC 520: Colliding Galaxies from Hubble
2021 September 06: Firefly Milky Way over Russia
2021 September 05: Earth and Moon
2021 September 04: A Falcon 9 Nebula
2021 September 03: NGC 7023: The Iris Nebula
2021 September 02: M51: The Whirlpool Galaxy
2021 September 01: Dancing Ghosts: Curved Jets from Active Galaxies
2021 August 31: A Blue Moon in Exaggerated Colors
2021 August 30: A Fire Rainbow over West Virginia
2021 August 29: Orbits of Potentially Hazardous Asteroids
2021 August 28: Mars Rock Rochette
2021 August 27: Elephant’s Trunk and Caravan
2021 August 26: A Blue Hour Full Moon
2021 August 25: Solar System Ball Drop
2021 August 24: PDS 70: Disk, Planets, and Moons
2021 August 23: Abell 3827: Cannibal Cluster Gravitational Lens
2021 August 22: Explosions from White Dwarf Star RS Oph
2021 August 21: Triple Transit and Mutual Events
2021 August 20: Three Perseid Nights
2021 August 19: Bright Meteor, Starry Sky
2021 August 18: Rings Around the Ring Nebula
2021 August 17: M57: The Ring Nebula from Hubble
2021 August 16: Perseid Meteor, Red Sprites, and Nova RS Oph
2021 August 15: Perseid Rain
2021 August 14: Island Universe, Cosmic Sand
2021 August 13: A Perfect Spiral
2021 August 12: A Beautiful Trifid
2021 August 11: Mammatus Clouds over Saskatchewan
2021 August 10: Fire in Space
2021 August 09: Perseus and the Lost Meteors
2021 August 08: A Perseid Below
2021 August 07: Jezero Crater: Raised Ridges in 3D
2021 August 06: Stars and Dust Across Corona Australis
2021 August 05: Tycho and Clavius
2021 August 04: EHT Resolves Central Jet from Black Hole in Cen A
2021 August 03: A Perseid Meteor and the Milky Way
2021 August 02: The Hubble Ultra Deep Field in Light and Sound
2021 August 01: Pluto in Enhanced Color
2021 July 31: Remembering NEOWISE
2021 July 30: Mimas in Saturnlight
2021 July 29: The Tulip and Cygnus X 1
2021 July 28: Ring Galaxy AM 0644 741
2021 July 27: Flemings Triangular Wisp
2021 July 26: CG4: A Ruptured Cometary Globule
2021 July 25: Crescent Neptune and Triton
2021 July 24: The Edge of Space
2021 July 23: Elephant, Bat, and Squid
2021 July 22: NGC 7814: Little Sombrero with Supernova
2021 July 21: Colors: Ring Nebula versus Stars
2021 July 20: Thor’s Helmet
2021 July 19: Framed by Trees: A Window to the Galaxy
2021 July 18: The Andromeda Galaxy in Ultraviolet
2021 July 17: Alphonsus and Arzachel
2021 July 16: Love and War by Moonlight
2021 July 15: The Dark Tower in Scorpius
2021 July 14: GW200115: Simulation of a Black Hole Merging with a Neutron Star
2021 July 13: Saturn’s Iapetus: Painted Moon in 3D
2021 July 12: M27: The Dumbbell Nebula
2021 July 11: Find the Moon
2021 July 10: Mercury and the Da Vinci Glow
2021 July 09: M82: Starburst Galaxy with a Superwind
2021 July 08: Perihelion to Aphelion
2021 July 07: Flight Through the Orion Nebula in Infrared Light
2021 July 06: Saturn and Six Moons
2021 July 05: IC 4592: The Blue Horsehead Reflection Nebula
2021 July 04: The Face on Mars
2021 July 03: Along the Milky Way
2021 July 02: AR2835: Islands in the Photosphere
2021 July 01: Perseverance Selfie with Ingenuity
2021 June 30: Simulation: Formation of the First Stars
2021 June 29: Orion Nebula: The Hubble View
2021 June 28: A Paper Moon Solar Eclipse
2021 June 27: The Dancing Auroras of Saturn
2021 June 26: Pixels in the Sun
2021 June 25: Andromeda in a Single Shot
2021 June 24: Messier 99
2021 June 23: STARFORGE: A Star Formation Simulation
2021 June 22: HD 163296: Jet from a Star in Formation
2021 June 21: The Tadpole Galaxy from Hubble
2021 June 20: Sunrise Solstice over Stonehenge
2021 June 19: Northern Summer Twilight
2021 June 18: Devil Horns from a Ring of Fire
2021 June 17: NGC 6888: The Crescent Nebula
2021 June 16: Scorpius Enhanced
2021 June 15: Zhurong: New Rover on Mars
2021 June 14: Ganymede from Juno
2021 June 13: A Supercell Thunderstorm Over Texas
2021 June 12: Eclipse on the Water
2021 June 11: Eclipse Flyby
2021 June 10: Circular Sun Halo
2021 June 09: A Total Lunar Eclipse Corona
2021 June 08: A Face in the Clouds of Jupiter from Juno
2021 June 07: A Bright Nova in Cassiopeia
2021 June 06: A Distorted Sunrise Eclipse
2021 June 05: The Shining Clouds of Mars
2021 June 04: Blood Monster Moon
2021 June 03: Millions of Stars in Omega Centauri
2021 June 02: The Galactic Center in Stars, Gas, and Magnetism
2021 June 01: Satellites over Orion
2021 May 31: Mimas: Small Moon with a Big Crater
2021 May 30: Aurora over Clouds
2021 May 29: Lunar Dust and Duct Tape
2021 May 28: Total Lunar Eclipse from Sydney
2021 May 27: Mid-Eclipse and Milky Way
2021 May 26: The Outburst Clouds of Star AG Car
2021 May 25: The Moon During a Total Lunar Eclipse
2021 May 24: Lightning Eclipse from the Planet of the Goats
2021 May 23: The Galaxy Tree
2021 May 22: Markarian’s Chain
2021 May 21: Utopia on Mars
2021 May 20: M13: The Great Globular Cluster in Hercules
2021 May 19: The Jellyfish and Mars
2021 May 18: Jets from the Necklace Nebula
2021 May 17: NGC 4565: Galaxy on Edge
2021 May 16: NGC 602 and Beyond
2021 May 15: The Southern Cliff in the Lagoon
2021 May 14: M104: The Sombrero Galaxy
2021 May 13: The Comet, the Whale, and the Hockey Stick
2021 May 12: A Meteor and the Gegenschein
2021 May 11: Lightning and Orion Beyond Uluru
2021 May 10: Star Clusters M35 and NGC 2158
2021 May 09: Horsehead and Orion Nebulas
2021 May 08: Deepscape at Yacoraite
2021 May 07: Mercury-Redstone 3 Launch
2021 May 06: Windblown NGC 3199
2021 May 05: STEVE over Copper Harbor
2021 May 04: Space Station, Solar Prominences, Sun
2021 May 03: Apollo 11: Earth, Moon, Spaceship
2021 May 02: Clouds of the Carina Nebula
2021 May 01: Perseverance from Ingenuity
2021 April 30: Pink and the Perigee Moon
2021 April 29: Apollo 17: The Crescent Earth
2021 April 28: North Star: Polaris and Surrounding Dust
2021 April 27: Animation: Black Hole Star Shredder
2021 April 26: A Sagittarius Triplet
2021 April 25: Planetary Nebula Mz3: The Ant Nebula
2021 April 24: Streak and Plume from SpaceX Crew2 Launch
2021 April 23: Flying Over the Earth at Night II
2021 April 22: Planet Earth at Twilight
2021 April 21: Centaurus As Warped Magnetic Fields
2021 April 20: Ingenuity: First Flight over Mars
2021 April 19: The Galactic Center in Infrared
2021 April 18: Rainbow Airglow over the Azores
2021 April 17: Inside the Flame Nebula
2021 April 16: The Doubly Warped World of Binary Black Holes
2021 April 15: The Galaxy, the Jet, and a Famous Black Hole
2021 April 14: The Pencil Nebula Supernova Shock Wave
2021 April 13: Confirmed Muon Wobble Remains Unexplained
2021 April 12: Alnitak and the Flame Nebula
2021 April 11: When Black Holes Collide
2021 April 10: Zodiacal Night
2021 April 09: Messier 106
2021 April 08: 3D Ingenuity
2021 April 07: Threads of NGC 1947
2021 April 06: Mars and the Pleiades Beyond Vinegar Hill
2021 April 05: Veil Nebula: Wisps of an Exploded Star
2021 April 04: In, Through, and Beyond Saturn’s Rings
2021 April 03: Ingenuity on Sol 39
2021 April 02: NGC 3521: Galaxy in a Bubble
2021 April 01: Rocket Launch as Seen from the Space Station
2021 March 31: M87’s Central Black Hole in Polarized Light
2021 March 30: Red Sprite Lightning over the Andes
2021 March 29: M64: The Evil Eye Galaxy
2021 March 28: SuitSat 1: A Spacesuit Floats Free
2021 March 27: Exploring the Antennae
2021 March 26: The Medusa Nebula
2021 March 25: Curiosity: Sol 3048
2021 March 24: Aurorae and Lightning on Jupiter
2021 March 23: Mars over Duddo Stone Circle
2021 March 22: From Auriga to Orion
2021 March 21: The Antikythera Mechanism
2021 March 20: The Leo Trio
2021 March 19: Central Lagoon in Infrared
2021 March 18: Stardust in the Perseus Molecular Cloud
2021 March 17: The Surface of Venus from Venera 14
2021 March 16: IC 1318: The Butterfly Nebula in Gas and Dust
2021 March 15: Meteor Fireballs in Light and Sound
2021 March 14: A Flag Shaped Aurora over Sweden
2021 March 13: SuperCam Target on Maaz
2021 March 12: Messier 81
2021 March 11: Zodiacal Light and Mars
2021 March 10: NGC 1499: The California Nebula
2021 March 09: Perseverance 360: Unusual Rocks and the Search for Life on Mars
2021 March 08: Three Tails of Comet NEOWISE
2021 March 07: Pillars of the Eagle Nebula in Infrared
2021 March 06: Perseverance Takes a Spin
2021 March 05: A Little Like Mars
2021 March 04: Mars in Taurus
2021 March 03: Stars over an Erupting Volcano
2021 March 02: Ingenuity: A Mini Helicopter Now on Mars
2021 March 01: The Pelican Nebula in Red and Blue
2021 February 28: The Aurora Tree
2021 February 27: Perseverance Landing Site from Mars Reconnaissance Orbiter
2021 February 26: Mars Perseverance Sol 3
2021 February 25: A Venus Flyby
2021 February 24: Spiral Galaxy M66 from Hubble
2021 February 23: Video: Perseverance Landing on Mars
2021 February 22: Moon Rising Between Starships
2021 February 21: NGC 2244: A Star Cluster in the Rosette Nebula
2021 February 20: Perseverance: How to Land on Mars
2021 February 19: Mars Perseverance Sol 0
2021 February 18: Swiss Alps, Martian Sky
2021 February 17: Sun Pillar with Upper Tangent Arc
2021 February 16: Perseverance: Seven Minutes to Mars
2021 February 15: Landing on Mars: Seven Minutes of Terror
2021 February 14: Long Stem Rosette Nebula
2021 February 13: Stereo Eros
2021 February 12: Spiral Galaxy NGC 1350
2021 February 11: Cygnus Mosaic 2010 2020
2021 February 10: Firing Lasers to Tame the Sky
2021 February 09: Flashes of the Crab Pulsar
2021 February 08: WR32 and Interstellar Clouds in Carina
2021 February 07: Blue Straggler Stars in Globular Cluster M53
2021 February 06: A Northern Winter Night
2021 February 05: Apollo 14 Heads for Home
2021 February 04: Apollo 14: A View from Antares
2021 February 03: Found on the Moon: Candidate for Oldest Known Earth Rock
2021 February 02: A Colorful Quadrantid Meteor
2021 February 01: Lunar Halo over Snowy Trees
2021 January 31: Asteroids in the Distance
2021 January 30: Southern Sky at 38,000 Feet
2021 January 29: North American Nightscape
2021 January 28: Messier 66 Close Up
2021 January 27: The Vertical Magnetic Field of NGC 5775
2021 January 26: Central NGC 1316: After Galaxies Collide
2021 January 25: Southern Cross over Chilean Volcano
2021 January 24: Massive Nearby Spiral Galaxy NGC 2841
2021 January 23: Recycling Cassiopeia A
2021 January 22: The Milky Ring
2021 January 21: M78 Wide Field
2021 January 20: The Magnetic Field of the Whirlpool Galaxy
2021 January 19: A Lunar Corona with Jupiter and Saturn
2021 January 18: The Medulla Nebula Supernova Remnant
2021 January 17: Jets from Unusual Galaxy Centaurus A
2021 January 16: The Mountains of NGC 2174
2021 January 15: A Plutonian Landscape
2021 January 14: Aurora Slathers Up the Sky
2021 January 13: Arches Across an Arctic Sky
2021 January 12: A Historic Brazilian Constellation
2021 January 11: Moon Phases in 2021
2021 January 10: Star Cluster R136 Breaks Out
2021 January 09: Titan: Moon over Saturn
2021 January 08: NGC 1365: Majestic Island Universe
2021 January 07: Total Solar Eclipse 2020
2021 January 06: Striped Sand Dunes on Mars
2021 January 05: The Small Cloud of Magellan
2021 January 04: Sprite Lightning at 100000 Frames Per Second
2021 January 03: A Phoenix Aurora over Iceland
2021 January 02: 21st Century Wet Collodion Moon
2021 January 01: Galaxies and the South Celestial Pole

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