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June 4 in spaceflight
Wikipedia records 5 spaceflight and astronomy events on June 4. Below are the pictures NASA published on June 4 in 6 different years — each one taken or released on this exact date.
Recorded events
IN THE RECORD5ENTRIES
Spaceflight and astronomy entries from Wikipedia's record of this date, oldest first — from 713 onward.
Pictures from this date
PUBLISHED6IMAGES
NASA's Astronomy Picture of the Day for June 4, one per year. Some are public domain and some belong to the photographer — each says which.
Published on June 4
NASA’s Astronomy Picture of the Day, for this calendar date in each of the last several years.
2026
A Planetary Nebula with Cosmic Buckyballs
What is happening inside this unusual nebula? Planetary nebula Tc 1, captured here in exquisite detail by the James Webb Space Telescope, is the celestial site where buckyballs were first identified in 2010. Buckminsterfullerene — as buckyballs are officially called — is a molecule with 60 carbon atoms (C60) arranged in the shape of a soccer ball. The molecule is named for architect Buckminster Fuller because of its resemblance to the geodesic dome he helped popularize. Webb’s new data reveal where the C60 molecules live in this nebula, and the geometry is striking: they populate a thin spherical shell around the central star, visible here as the bright edge of the nebula’s glowing orange central region. Look closely near the nebula’s heart and a more perplexing feature emerges: a delicate structure shaped uncannily like an upside-down question mark, fitting punctuation for the many questions this nebula still poses.
NASA · public domain
2025
A Milky Road to the Rubin Observatory
Is the sky the same every night? No -- the night sky changes every night in many ways. To better explore how the night sky changes, the USA's NSF and DOE commissioned the Vera C. Rubin Observatory in Cerro Pachón, Chile. In final testing before routine operations, Rubin will begin to explore these nightly changes -- slight differences that can tell us much about our amazing universe and its surprising zoo of objects. With a mirror over 8 meters across, Rubin will continually reimage the entire visible sky every few nights to discover new supernovas, potentially dangerous asteroids, faint comets, and variable stars -- as well as mapping out the visible universe's large-scale structure. Pictured, the distant central band of our Milky Way Galaxy appears to flow out from the newly operational observatory. Taken last month, the featured picture is a composite of 21 images across the night sky, capturing airglow on the horizon and the Small Magellanic Cloud galaxy on the lower left. APOD Turns 30!: Free Public Lecture in Anchorage on June 11
NASA · public domain
2024
Comet Pons-Brooks Develops Opposing Tails
Why does Comet Pons-Brooks now have tails pointing in opposite directions? The most spectacular tail is the blue-glowing ion tail that is visible flowing down the image. The ion tail is pushed directly out from the Sun by the solar wind. On the upper right is the glowing central coma of Comet 12P/Pons–Brooks. Fanning out from the coma, mostly to the left, is the comet's dust tail. Pushed out and slowed down by the pressure of sunlight, the dust tail tends to trail the comet along its orbit and, from some viewing angles, can appear opposite to the ion tail. The distant, bright star Alpha Leporis is seen at the bottom of the featured image captured last week from Namibia. Two days ago, the comet passed its closest to the Earth and is now best visible from southern skies as it dims and glides back to the outer Solar System.
© Rolando Ligustri & Lukas Demetz — used with the credit NASA publishes
2023
Color the Universe
Wouldn't it be fun to color in the universe? If you think so, please accept this famous astronomical illustration as a preliminary substitute. You, your friends, your parents or children, can print it out or even color it digitally. While coloring, you might be interested to know that even though this illustration has appeared in numerous places over the past 100 years, the actual artist remains unknown. Furthermore, the work has no accepted name -- can you think of a good one? The illustration, first appearing in a book by Camille Flammarion in 1888, is frequently used to show that humanity's present concepts are susceptible to being supplanted by greater truths.
NASA · public domain
2022
Tau Herculids from Space
On May 31 tens of parallel meteor streaks were recorded in this 8 degree wide field of view of planet Earth's limb from space. The image is one of a series of 5 minute long observations by the orbiting Yangwang-1 space telescope. It was captured at 03:43 UT, near the peak of the Tau Herculid meteor shower. As predicted, the meteor shower was an active one this year, caused as Earth swept through a relatively dense stream of debris from disintegrating Comet 73P/Schwassmann-Wachmann 3, but was lacking bright meteors. Nearly all of the Tau Herculid meteors in the Yangwang-1 image are too faint to be detected by groundbased instruments. But on that date patient earthbound skywatchers under clear skies still enjoyed a memorable showing of the Tau Herculids.
© Zhuoxiao Wang — used with the credit NASA publishes
2021
Blood Monster Moon
On May 26, the Full Flower Moon was caught in this single exposure as it emerged from Earth's shadow and morning twilight began to wash over the western sky. Posing close to the horizon near the end of totality, an eclipsed lunar disk is framed against bare oak trees at Pinnacles National Park in central California. The Earth's shadow isn't completely dark though. Faintly suffused with sunlight scattered by the atmosphere, the inner shadow gives the totally eclipsed moon a reddened appearance and the very dramatic popular moniker of a Blood Moon. Still, the monstrous visage of a gnarled tree in silhouette made this view of a total lunar eclipse even scarier.
© Chirag Upreti — used with the credit NASA publishes
What happened on June 4
713
The imperial official Artemius is chosen as Byzantine emperor the day after the blinding of previous emperor Philippicus. Artemisius chooses the name of Anastasius II and announces his adherence to Chalcedonian Christianity.
List of Byzantine emperors ↗
1942
World War II: Gustaf Mannerheim, the Commander-in-Chief of the Finnish Army, is granted the title of Marshal of Finland by the government on his 75th birthday. On the same day, Adolf Hitler arrives in Finland for a surprise visit to meet Mannerheim.
Carl Gustaf Emil Mannerheim ↗
1983
Gordon Kahl, who killed two US Marshals in Medina, North Dakota on February 13, is killed in a shootout in Smithville, Arkansas, along with a local sheriff, after a four-month manhunt.
Gordon Kahl ↗
1996
The first flight of Ariane 5 explodes after roughly 37 seconds. It was a Cluster mission.
Ariane 5 ↗
2010
Falcon 9 Flight 1 is the maiden flight of the SpaceX Falcon 9 rocket, which launches from Cape Canaveral Air Force Station Space Launch Complex 40.
Dragon Spacecraft Qualification Unit ↗
Sources and licences
Event text and thumbnails come from Wikipedia and are used under CC BY-SA 4.0. Images are drawn only from Wikimedia Commons, which does not accept non-free content — each thumbnail links to its file page, where its licence and author are recorded.
Launch records are from The Space Devs’ Launch Library 2. This archive is still being mirrored, so some days are incomplete. Pictures are NASA’s Astronomy Picture of the Day; NASA imagery is generally not subject to copyright, but individual APOD entries are frequently the property of the photographer, and each caption says which applies.
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Cosmos — Carl Sagan
Still the best single argument for why any of this matters, and it leaves the arithmetic in. For a reader who wants the science, not just the awe.
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Pale Blue Dot — Carl Sagan
The case for leaving Earth, written by someone unsentimental about how hard that is. Suits readers who want the argument rather than the poster.
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Project Hail Mary — Andy Weir
Hard-SF problem solving in The Martian's key — for anyone who liked the engineering more than the peril. The only novel on this list.
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