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hourlycosmos.bsky.social
Hourly Cosmos
@hourlycosmos.bsky.social
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Photo sharing bot for planetary and deep space images.

Run by @kevinmgill.bsky.social

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hourlycosmos.bsky.social
Europa - July 9 1979 - From Kevin M. Gill (kevinmgill.bsky.social) - https://flic.kr/p/FAptq7
Processed using orange, blue, and violet filtered images of Europa taken by Voyager 2 on July 9 1979. NASA/JPL-Caltech/Kevin M. Gill
November 25, 2025 at 9:00 AM
hourlycosmos.bsky.social
ESP_011527_1325 - From UAHiRISE (NASA) (uahirise.bsky.social) - https://flic.kr/p/eeW7za
November 25, 2025 at 8:00 AM
hourlycosmos.bsky.social
The foothills of Mount Sharp - sol 1987 - From Thomas Appéré (thomasappere.bsky.social) - https://flic.kr/p/H8rDLQ
Mosaic of three MastCam 100mm pictures taken on sol 1987 at approximately 10h41 local time. ------------------------------------------------------------------------------------------------- Mosaïque de trois photos acquises par la caméra MastCam 100 mm au sol 1987 à 10h41 heure locale.
November 25, 2025 at 7:00 AM
hourlycosmos.bsky.social
Titan - Rhea Mutual - From Gordan Ugarković (ugordan.bsky.social) - https://flic.kr/p/8LKcFf
Cassini NAC RGB. 2009-11-19 04:30 UTC. Distance to Titan: 2.31 million km Distance to Rhea: 1.15 million km Phase angle: 118 deg Titan is precisely twice as far from Cassini than Rhea here. As a result, in relative size Rhea appears exactly 2x larger than it actually is, compared to Titan's size. Compared to this image where it's Rhea that's on the far side, the moons' relative brightnesses are also reversed. At lower phase angle, Rhea's icy surface is more reflective than Titan's haze and Rhea appears brighter. With increasing phase angle, the back-scattering ice and regolith on Rhea darkens substantially and Titan's atmosphere actually brightens from increased forward-scattering of light. Here, Titan is the brighter of the two. Magnified 1.5x for better visibility.
November 25, 2025 at 6:00 AM
hourlycosmos.bsky.social
Receding From Titan - From Ian Regan - https://flic.kr/p/nEE1QG
This natural color view of Titan's north polar haze cap was taken on May 19, 2014 by the Cassini spacecraft from a distance of 423,949 miles (682,280 kilometers).
November 25, 2025 at 5:00 AM
hourlycosmos.bsky.social
8 cm debris from the Sky Crane - Perseverance, sol 477 - From Thomas Appéré (thomasappere.bsky.social) - https://flic.kr/p/2nuFQi5
Picture taken by Mastcam-Z camera on the head of Perseverance rover on sol 477 (June 23, 2022) at 9:48 am Martian local time. The 8 cm debris on the left is probably a part of the Sky Crane, projected during the explosion of the Sky Crane at its crash and transported here by the wind.
November 25, 2025 at 4:00 AM
hourlycosmos.bsky.social
Conjunción Venus, Luna, Saturno y Régulo - From Ángel López-Sánchez - https://flic.kr/p/2kc47T
Entre los árboles australianos. Los cables pertenecen a la calle "Epping Road" que pasa debajo...
November 25, 2025 at 3:00 AM
hourlycosmos.bsky.social
Sea Ice and Phytoplankton Mix in the Northwestern Passage - From Goddard Space Flight Center - https://flic.kr/p/fumSya
The remnants of sea ice along the Northwestern Passage in northern Canada are seen swirling with the blue green of phytoplankton in this image from the Suomi NPP VIIRS sensor, acquired on August 11, 2013. NASA/NOAA NASA image use policy. NASA Goddard Space Flight Center enables NASA’s mission through four scientific endeavors: Earth Science, Heliophysics, Solar System Exploration, and Astrophysics. Goddard plays a leading role in NASA’s accomplishments by contributing compelling scientific knowledge to advance the Agency’s mission. Follow us on Twitter Like us on Facebook Find us on Instagram
November 24, 2025 at 10:00 PM
hourlycosmos.bsky.social
Filament Eruption Creates 'Canyon of Fire' on the Sun - From Goddard Space Flight Center - https://flic.kr/p/gWrofJ
A magnetic filament of solar material erupted on the sun in late September, breaking the quiet conditions in a spectacular fashion. The 200,000 mile long filament ripped through the sun's atmosphere, the corona, leaving behind what looks like a canyon of fire. The glowing canyon traces the channel where magnetic fields held the filament aloft before the explosion. Visualizers at NASA's Goddard Space Flight Center in Greenbelt, Md. combined two days of satellite data to create a short movie of this gigantic event on the sun: bit.ly/166CncU In reality, the sun is not made of fire, but of something called plasma: particles so hot that their electrons have boiled off, creating a charged gas that is interwoven with magnetic fields. These images were captured on Sept. 29-30, 2013, by NASA's Solar Dynamics Observatory, or SDO, which constantly observes the sun in a variety of wavelengths. Read more/download video: 1.usa.gov/1dnrsjF Credit: NASA/SDO NASA image use policy. NASA Goddard Space Flight Center enables NASA’s mission through four scientific endeavors: Earth Science, Heliophysics, Solar System Exploration, and Astrophysics. Goddard plays a leading role in NASA’s accomplishments by contributing compelling scientific knowledge to advance the Agency’s mission. Follow us on Twitter Like us on Facebook Find us on Instagram
November 24, 2025 at 9:01 PM
hourlycosmos.bsky.social
Aurora over Raisting Earth Station - From Simeon Schmauß (stim3on.bsky.social) - https://flic.kr/p/2pQvMHo
What a crazy night, we went into it not expecting much since the solar storm was forecast for after sunrise in central Europe. However, before the sun had even set, I got the alert that the first CME had impacted Earth, so the chances immediately looked a lot better. What then unfolded surpassed even our wildest expectations. We ended up driving to this satellite ground station south of Ammersee in southern Bavaria and just when we arrived we spotted the first diffuse pillars north of us. We experienced three waves of incredibly strong Aurora, especially for our rather Southern latitude. During the second wave we saw individual pulsating filaments dancing over our heads. What a breathtaking experience! Many thanks to Christopher for accompanying me on this adventure, Max for being an all round great guy, and Sebastian who lent me his wide angle lenses that made these shots possible.
November 24, 2025 at 8:00 PM
hourlycosmos.bsky.social
Firestorm Of Star Birth In The Active Galaxy Centaurus A - From Goddard Space Flight Center - https://flic.kr/p/9TMNa5
NASA image release June 16, 2011 Resembling looming rain clouds on a stormy day, dark lanes of dust crisscross the giant elliptical galaxy Centaurus A. Hubble's panchromatic vision, stretching from ultraviolet through near-infrared wavelengths, reveals the vibrant glow of young, blue star clusters and a glimpse into regions normally obscured by the dust. The warped shape of Centaurus A's disk of gas and dust is evidence for a past collision and merger with another galaxy. The resulting shockwaves cause hydrogen gas clouds to compress, triggering a firestorm of new star formation. These are visible in the red patches in this Hubble close-up. At a distance of just over 11 million light-years, Centaurus A contains the closest active galactic nucleus to Earth. The center is home for a supermassive black hole that ejects jets of high-speed gas into space, but neither the supermassive or the jets are visible in this image. This image was taken in July 2010 with Hubble's Wide Field Camera 3. The Hubble Space Telescope is a project of international cooperation between NASA and the European Space Agency. NASA's Goddard Space Flight Center manages the telescope. The Space Telescope Science Institute (STScI) conducts Hubble science operations. STScI is operated for NASA by the Association of Universities for Research in Astronomy, Inc., in Washington, D.C. For images and more information about the findings, visit: www.nasa.gov/hubble and www.hubblesite.org/news/20...
November 24, 2025 at 7:00 PM
hourlycosmos.bsky.social
There You Are! #2 - From Gordan Ugarković (ugordan.bsky.social) - https://flic.kr/p/e7SXYH
Cassini WAC RGB view taken on 2012-06-27. Distance: 469 000 km Phase angle: 88 deg Magnified 2x. W1719490554
November 24, 2025 at 6:00 PM
hourlycosmos.bsky.social
AS11-37-5534 Composite - Apollo 11 - From Aster Cowart (terrasabaea.bsky.social) - https://flic.kr/p/TGbhVd
This is a version of AS11-37-5534 that has been composited with frame AS11-37-5547, which was taken looking the same direction through the LM window. This composite frame was created to replace the overexposed landscape in the original frame. Image Credit: Apollo 11 Crew / NASA / Project Apollo Archive / Justin Cowart
November 24, 2025 at 5:00 PM
hourlycosmos.bsky.social
Voyager 1 wide-angle Jupiter mosaic (March 4, 1979) - From Ian Regan - https://flic.kr/p/2et7QZW
The innermost Galliean satellite, Io, is seen here coasting above the russet cloud decks of Jupiter. This Voyager 1 mosaic consists of three principle orange, green, and blue color composite frames, each shuttered through the wide-angle camera on the evening of March 4, 1979. Gaps in coverage were filled by other three-filtered composites, taken earlier or later the same day. North is to the right. Planet-spacecraft distance was some 650,000 miles at this time. NASA / JPL / Ian Regan
November 24, 2025 at 4:00 PM
hourlycosmos.bsky.social
Ingenuity looks west - sol 91 - From Thomas Appéré (thomasappere.bsky.social) - https://flic.kr/p/2m25Cov
Picture taken by RTE camera aboard Ingenuity helicopter on sol 91 (22 May 2021). The helicopter was flying at an altitude of 10 meters. Sky extended on post-processing.
November 24, 2025 at 3:00 PM
hourlycosmos.bsky.social
Cometa McNaught y Antena 2 - From Ángel López-Sánchez - https://flic.kr/p/zbEFo
Cometa McNaught junto a la Antena 2 del interferómetro ATCA (Narrabri, Australia), fotografiado la noche del 29 de enero de 2007 a las 10h TU. Combinación de 18 imágenes de 30 segundos de exposición a sensibilidad de 800 ASA. La combinación se realizó con el programa ImagesPlus y luego tratada con Photoshop para incluir la mejor imagen de primer plano de la secuencia.
November 24, 2025 at 2:00 PM
hourlycosmos.bsky.social
0490ML195100_0_4000E1_DXXX - From 2di7 & titanio44 - https://flic.kr/p/iztjLW
"Courtesy NASA/JPL-Caltech" processing 2di7 & titanio44
November 24, 2025 at 1:01 PM
hourlycosmos.bsky.social
2017-04-03 Hubble Jupiter Portrait (Modified) - From Ian Regan - https://flic.kr/p/TqYPXv
Modified version of HST Jupiter portrait. It has been tweaked toward something approaching 'natural colour'. ____________________ Credit : NASA, ESA, and A. Simon (GSFC) / Modified by Ian Regan ____________________ Original: hubblesite.org/image/4012/news_release/2017-15
November 24, 2025 at 12:00 PM
hourlycosmos.bsky.social
ESP_017384_1670 - From UAHiRISE (NASA) (uahirise.bsky.social) - https://flic.kr/p/ef33aE
November 24, 2025 at 11:00 AM
hourlycosmos.bsky.social
MSL Sol 2802 - MastCam - From Kevin M. Gill (kevinmgill.bsky.social) - https://flic.kr/p/2jftdfJ
NASA/JPL-Caltech/MSSS/Kevin M. Gill
November 24, 2025 at 10:00 AM
hourlycosmos.bsky.social
Olympus, Ascraeus Mons and a Dust Storm - ESA Mars Express - From Andrea Luck (andrealuck.bsky.social) - https://flic.kr/p/2r95M3B
Download full size image here 170MP: www.flickr.com/photos/192271236@N03/54569075691/sizes/o/ See license below. Credit: ESA/DLR/FUBerlin/AndreaLuck CC BY You can browse the full size image here: easyzoom.com/image/633505 Check out also the video of the dust storm on the move here: flic.kr/p/2r8KW9d Image created processing data from: psa.esa.int Mission: ESA Mars Express North is approx on the bottom right side of the image Instrument: HRSC Orbit: 25411 Time: 2024-02-16T14:43:18.832 Filters: HP411_0000_ND3.IMG HP411_0000_GR3.IMG HP411_0000_BL3.IMG Credit: ESA/DLR/FUBerlin/AndreaLuck CC BY Feel free to share, giving the appropriate credit and providing a link to the original image: creativecommons.org/licenses/by/3.0/
November 24, 2025 at 8:00 AM
hourlycosmos.bsky.social
MSL - Sol 3212 - Mastcam - From Kevin M. Gill (kevinmgill.bsky.social) - https://flic.kr/p/2mibj1v
NASA/JPL-Caltech/MSSS/Kevin M. Gill
November 24, 2025 at 7:00 AM
hourlycosmos.bsky.social
Storm - From Gordan Ugarković (ugordan.bsky.social) - https://flic.kr/p/bo61eg
TBD.
November 24, 2025 at 5:00 AM
hourlycosmos.bsky.social
Mars Helicopter Ingenuity on Sol 871 - From Simeon Schmauß (stim3on.bsky.social) - https://flic.kr/p/2ptn6qu
Mastcam-Z took this image of the dusty Ingenuity helicopter on Sol 781 from a distance of only 15m. This is the closest the two robots have been since early in the mission. Ingenuity has flown 53 times to date. Credit: NASA/JPL-Caltech/ASU/Simeon Schmauß
November 24, 2025 at 3:00 AM
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...
November 24, 2025 at 2:00 AM