#GALEX
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wonderofscience.bsky.social
The Andromeda galaxy in ultraviolet.

Credit: NASA, JPL-Caltech, GALEX
June 5, 2025 at 11:38 PM
hourlycosmos.bsky.social
GALEX Andromeda Mosaic - From Judy Schmidt (geckzilla.bsky.social) - https://flic.kr/p/FPGi9u
I have recently turned my attention to some archival GALEX data and found it quite promising. What surprised me the most was the presence of galactic cirrus in the FUV (far ultraviolet) channel. Because I am unfamiliar with the "personality" of the telescope I almost mistook it for some kind of odd artifacting. As far as I know, this cirrus has never been presented in a GALEX image before, so I am happy to have found it there. If you are having a hard time seeing it, a brighter version is available here (6.7MB JPG). Processing notes: Of greatest concern is the FUV-bright star (Nu Andromedae) in the lower left. There was no FUV data available; all came from a single, low duration NUV (near ultraviolet) exposure. The brightness of the star was interpolated based on nearby contextual clues from frames which did contain FUV information. It is definitely the brightest FUV source in the frame, and I think it was fair to "fake" it like this. From what I am able to gather, observations of bright FUV sources were avoided due to long-term issues with the detectors, so that is probably why there were never any exposures of this particular star. Several areas are monochrome like this, mostly in the lower left corner and another near the southern tip of the galaxy. These filler data are very coarse and do not look good up close, but they had to suffice. Many little annuli were removed, including a giant line of them emanating from Nu Andromedae. I tried to match ...
March 9, 2025 at 11:00 PM
orimew.bsky.social
Reference sheet and character design for Galex!
February 12, 2025 at 6:49 PM
astronomy.bsky.social
The Helix Nebula, 650 light-years away in Aquarius, is a dying star’s cosmic tantrum. Captured by Spitzer, GALEX, and WISE, this planetary nebula glows as its white dwarf core heats expelled gas. Once like our Sun, the star now leaves behind a stunning celestial display.

Credit: NASA/JPL-Caltech
The Helix Nebula, 650 light-years away in Aquarius, is a dying star’s cosmic tantrum. Captured by Spitzer, GALEX, and WISE, this planetary nebula glows as its white dwarf core heats expelled gas. Once like our Sun, the star now leaves behind a stunning celestial display. Credit: NASA/JPL-Caltech
March 12, 2025 at 4:25 PM
saschatrippe.bsky.social
GALEX ultraviolet view of Andromeda. Nice! (Image from 2016.) 🧪🔭

www.flickr.com/photos/geckz...
GALEX ultraviolet mosaic of Andromeda, by Judy Schmidt. Source: https://www.flickr.com/photos/geckzilla/26137651424
November 15, 2025 at 1:26 PM
williamsracingf1.bsky.social
Sunday smiles from Galex 💙
September 14, 2025 at 1:58 PM
lemnncurdd.bsky.social
yuri galex
January 13, 2026 at 1:04 PM
2blabs.bsky.social
Clients 488 and 489: Silvia and Galex
Clients 488 and 489: Silvia and Galex
April 22, 2024 at 5:59 PM
tootpoot.bsky.social
Pixel Wip of my oc Simon and my friends oc Galex
November 7, 2024 at 2:48 AM
astronomers.bsky.social
Helix Nebula – Unraveling at the Seams
Credit:Nasa
A dying star is throwing a cosmic tantrum in this combined image from NASA's Spitzer Space Telescope and the Galaxy Evolution Explorer (GALEX), which NASA has lent to the California Institute of Technology in Pasadena. In death, the star's dusty outer layers are unraveling into space, glowing from the intense ultraviolet radiation
December 3, 2024 at 10:18 PM
2blabs.bsky.social
Client 610: Galex
Client 610: Galex
August 8, 2024 at 12:16 PM
dragontony.bsky.social
Cathy from "Until then" for Galex
January 17, 2026 at 2:05 AM
hourlycosmos.bsky.social
GALEX Andromeda Mosaic - From Judy Schmidt (geckzilla.bsky.social) - https://flic.kr/p/FPGi9u
I have recently turned my attention to some archival GALEX data and found it quite promising. What surprised me the most was the presence of galactic cirrus in the FUV (far ultraviolet) channel. Because I am unfamiliar with the "personality" of the telescope I almost mistook it for some kind of odd artifacting. As far as I know, this cirrus has never been presented in a GALEX image before, so I am happy to have found it there. If you are having a hard time seeing it, a brighter version is available here (6.7MB JPG). Processing notes: Of greatest concern is the FUV-bright star (Nu Andromedae) in the lower left. There was no FUV data available; all came from a single, low duration NUV (near ultraviolet) exposure. The brightness of the star was interpolated based on nearby contextual clues from frames which did contain FUV information. It is definitely the brightest FUV source in the frame, and I think it was fair to "fake" it like this. From what I am able to gather, observations of bright FUV sources were avoided due to long-term issues with the detectors, so that is probably why there were never any exposures of this particular star. Several areas are monochrome like this, mostly in the lower left corner and another near the southern tip of the galaxy. These filler data are very coarse and do not look good up close, but they had to suffice. Many little annuli were removed, including a giant line of them emanating from Nu Andromedae. I tried to match ...
November 15, 2025 at 1:00 PM
herbstwind.bsky.social
Das faszinierende Galaxienpaar M81 und M82 leuchtet in dieser Vollbildansicht des umlaufenden GALEX-Observatoriums. GALEX – der Galaxy Evolution Explorer – scannt den Kosmos im ultravioletten Licht und verfolgt so die Sternentstehung und Galaxienentwicklung durch das Universum
October 9, 2025 at 3:23 AM
astrozhao.bsky.social
I serendipitously discovered another nova candidate in M31 from archival Galaxy Evolution Explorer (GALEX) images; it has been designated AT 2004jb = M31N 2004-09c. 🔭
www.wis-tns.org/object/2004jb
September 22, 2026 at 9:54 AM
astropics.bsky.social
惑星状星雲の「らせん星雲（NGC 7293）」。スピッツァー宇宙望遠鏡、ハッブル宇宙望遠鏡、GALEX、チャンドラX線望遠鏡で撮影した画像を合成したものです。

惑星状星雲は太陽程度の質量の星の晩年の姿。

記事：
astropics.bookbright.co.jp/helix-nebula...
June 4, 2026 at 5:00 AM
marijkelouise.bsky.social
NGC 6744, een spectaculair spiraalstelsel waargenomen door GALEX.

Het primaire doel van GALEX was om sterrenstelsels in het ultraviolet te observeren om de snelheid van stervorming te bepalen.

slate.com/technology/2...
October 9, 2025 at 7:41 PM
hourlycosmos.bsky.social
Antlia Cluster (Abell S0636) Extreme Deep Field: Comparison with DSS and GALEX fields - From Rolf Wahl Olsen - https://flic.kr/p/wE6PPP
In the top left corner is my Antlia Cluster (Abell S0636) Extreme Deep Field image and at top right is a highly stretched image from the STScI Digitized Sky Survey which shows merely a hint of a few of the large scale structures. In particular the vertical filament from the Antlia Supernova Remnant and the comet-like Intracluster Light tail from the NGC3258 group near the top left corner. In the bottom left is the same field from GALEX All-Sky Imaging Survey in Ultraviolet light. Here the sumernova remnant is the only prominent large scale structure and the older elliptical galaxies are greatly diminished. Only a few of the bluest galaxies are prominent in the GALEX field, a hint of their vigorous star forming activity. At bottom right is a stretched greyscale version of my image, showing the true extent of the Intracluster Light and Integrated Flux Nebula across the field. The limiting magnitude of the image is around 25.00. Given that my earlier 120 hour exposure of Centaurus A reached magnitude 25.45 one might have expected a slightly higher limit this time, but the Antlia Cluster is only 19 degrees from the Galactic plane and thus looking in this direction is subject to higher absorption. It is also evident from the image that we are looking though a complex distribution of Integrated Flux Nebula which in effect act as light pollution in this context. However the presence of these dim clouds draped across the field of view is also hauntingly beautiful and is certain...
August 9, 2026 at 12:00 AM
philplait.bsky.social
I love this GALEX ultraviolet view of Andromeda. I wrote about it a few years back: slate.com/technology/2...
November 15, 2025 at 1:03 PM
astronomy.bsky.social
The Andromeda Galaxy (M31), our nearest spiral neighbour 2.5 million light-years away, is revealed in a new multi-wavelength composite from X-ray to radio. Each light type highlights unique features, from black hole flares to star-forming dust.

Credit: NASA/ESA/STScI/Chandra/Spitzer/WISE/GALEX
The Andromeda Galaxy (M31), our nearest spiral neighbour 2.5 million light-years away, is revealed in a new multi-wavelength composite from X-ray to radio. Each light type highlights unique features, from black hole flares to star-forming dust. Credit: NASA/ESA/STScI/Chandra/Spitzer/WISE/GALEX
June 26, 2025 at 4:36 PM
liwysz.bsky.social
O jeito que o Alex olha pro George 😭💙

MEUS GALEX SEGUEM VIVOS!!!
September 12, 2024 at 1:32 PM
herbstwind.bsky.social
Das faszinierende Galaxienpaar M81 und M82 leuchtet in dieser Vollbildansicht des umlaufenden GALEX-Observatoriums. GALEX ...der Galaxy Evolution Explorer...scannt den Kosmos im ultravioletten Licht und verfolgt so die Sternentstehung und Galaxienentwicklung durch das Universum.
September 26, 2025 at 3:31 AM
kosmonautix.cz
Obrázků vzdálenějšího vesmíru v ultrafialové oblasti spektra většinou moc neuvidíte. Spíše dominuje infračervená část.

Ale i takové snímky existují. Zde například velká spirální galaxie M31 v Andromedě na snímku amerického teleskopu GALEX.
December 26, 2025 at 9:51 PM
hourlycosmos.bsky.social
Antlia Cluster (Abell S0636) Extreme Deep Field: Comparison with DSS and GALEX fields - From Rolf Wahl Olsen - https://flic.kr/p/wE6PPP
In the top left corner is my Antlia Cluster (Abell S0636) Extreme Deep Field image and at top right is a highly stretched image from the STScI Digitized Sky Survey which shows merely a hint of a few of the large scale structures. In particular the vertical filament from the Antlia Supernova Remnant and the comet-like Intracluster Light tail from the NGC3258 group near the top left corner. In the bottom left is the same field from GALEX All-Sky Imaging Survey in Ultraviolet light. Here the sumernova remnant is the only prominent large scale structure and the older elliptical galaxies are greatly diminished. Only a few of the bluest galaxies are prominent in the GALEX field, a hint of their vigorous star forming activity. At bottom right is a stretched greyscale version of my image, showing the true extent of the Intracluster Light and Integrated Flux Nebula across the field. The limiting magnitude of the image is around 25.00. Given that my earlier 120 hour exposure of Centaurus A reached magnitude 25.45 one might have expected a slightly higher limit this time, but the Antlia Cluster is only 19 degrees from the Galactic plane and thus looking in this direction is subject to higher absorption. It is also evident from the image that we are looking though a complex distribution of Integrated Flux Nebula which in effect act as light pollution in this context. However the presence of these dim clouds draped across the field of view is also hauntingly beautiful and is certain...
October 5, 2025 at 1:00 AM
herbstwind.bsky.social
Wo sind die heißen Sterne in M81, einer der nächstgelegenen großen Spiralgalaxien? Um das herauszufinden, haben Astronomen mit dem die Erde umkreisenden Galex-Teleskop ein detailliertes Bild der ausgedehnten Spirale im ultravioletten Licht aufgenommen.
nasa
August 8, 2025 at 3:23 AM