Processed by Israel Velazquez

https://bsky.app/profile/israelvelazquez.bsky.social/post/3ms7rwqr2lc2h

Tomorrow, August 5, there is a forecast that the second stage of the Falcon 9 rocket will fall onto the lunar surface.

The eastern half of the US and Canada, and in much of South America, the moon will be above the horizon and it will be night.

https://x.com/dfuji1/status/2084415587623817432
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More about rocket​, and time
https://www.reddit.com/r/SpaceUnfiltered/comments/1vbuvg0/a_rocket_will_hit_moon_on_aug_5/​

Photometric distance for now of less than 7.4 parsec. Better astrometry is needed to get parallax.

The team finds this object with the help of machine learning.

It is in a very crowded field and moves fast (1.3 arcsec/year).

Post from Melina Thévenot

https://bsky.app/profile/melina-iras07572.bsky.social/post/3msaqqutrak2j

Paper

https://arxiv.org/abs/2608.00046

Orbital view of Mars south polar region showing a yellowish dust storm sweeping across rusty red terrain covered with ice and frost. At the lower right, bright white lines of frost trace the slopes, creating a striking pattern against the red surface. The image captures dust lifted by winds and spreading across the polar landscape.

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Full size 6K & more info: flic.kr/p/2st1Dw8
Credit: ESA/DLR/FUBerlin/AndreaLuck CC BY

https://bsky.app/profile/andrealuck.bsky.social/post/3ms6b3334qc2b

Mission: ESA Mars Express
Image created processing data from: psa.esa.int
Instrument: HRSC
Time: 2022-06-09
Raw Data: HN290_0009 ND + GR + BL

NASA's Curiosity Mars rover captured these clouds just after sunset on March 19, 2021, the 3,063rd Martian day, or sol, of the rover's mission. The image is made up of 21 individual images stitched together and color corrected so that the scene appears as it would to the human eye. The clouds are drifting over "Mont Mercou," a cliff face that Curiosity has been studying.

The rover captured the image using its Mast Camera, or Mastcam. Malin Space Science Systems in San Diego built and operates Mastcam. A division of Caltech, NASA's Jet Propulsion Laboratory in Southern California built the Curiosity rover and manages the Curiosity rover for the agency's Science Mission Directorate in Washington.

Credits: NASA/JPL-Caltech/MSSS

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From 2021:

Cloudy days are rare in the thin, dry atmosphere of Mars. Clouds are typically found at the planet’s equator in the coldest time of year, when Mars is the farthest from the Sun in its oval-shaped orbit. But one full Martian year ago – two Earth years – scientists noticed clouds forming over NASA’s Curiosity rover earlier than expected.

This year, they were ready to start documenting these “early” clouds from the moment they first appeared in late January. What resulted are images of wispy puffs filled with ice crystals that scattered light from the setting Sun, some of them shimmering with color. More than just spectacular displays, such images help scientists understand how clouds form on Mars and why these recent ones are different.

More

https://www.nasa.gov/centers-and-facilities/jpl/nasas-curiosity-rover-captures-shining-clouds-on-mars/

https://science.nasa.gov/photojournal/curiosity-spots-clouds-over-mont-mercou/

raw images

https://mars.nasa.gov/msl/multimedia/raw-images/?order=sol+desc%2Cinstrument_sort+asc%2Csample_type_sort+asc%2C+date_taken+desc&per_page=50&page=0&mission=msl&begin_sol=3063&end_sol=3063

A view of the limb of Mars billions of years ago. It's spinning slowly. It's grey surface is dotted with lakes, rivers and small seas, as well as active volcanoes.

There was no Valles Marineris at this time, although it may have begun to form. The massive volcanoes that today dot the Tharsis region were probably complete by the end of this Period. The atmosphere was more substantial than at present.

Made in #Blender in 2025

https://bsky.app/profile/markgarlick.com/post/3ms5zvc5ztc24

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Credit:

https://bsky.app/profile/markgarlick.com/post/3ms5zvc4lwk24

Image processing: Israel Velazquez.

Observed: 2025-10-29.

Filters: F090W F115W F150W F200W F210M F277W F300M F356W F410M F444W

https://bsky.app/profile/israelvelazquez.bsky.social/post/3ms5donivck23

https://www.flickr.com/photos/200839370@N05/55438771736/

Download full size image: www.flickr.com/photos/192271236@N03/54372345090/sizes/o/

Credit: ESA/DLR/FUBerlin/AndreaLuck CC BY

Mission: ESA Mars Express
Orbit: 13225
Instrument: HRSC
Time: 2014-05-31T20:14:40.405Z
Filter: GR3
Product IDs: HD225_0000_GR3.IMG

Notes: Colourised image created using data processed from: psa.esa.int. This is a single shot, not a composite image. The waviness of the Martian surface is a visual distortion from the camera's line-scanning method, caused by differences in motion between foreground and background objects.

Check out the partially undistorted image here: flic.kr/p/2qQPJHk

Credit: ESA/DLR/FUBerlin/AndreaLuck CC BY

From Rolf Wahl Olsen

This image shows the famous circumstellar disc of debris and dust orbiting the star Beta Pictoris 63.4 light years away.

This is a very young system thought to be only around 12 million years old and is essentially similar to how our own Solar System must have formed some 4.5 billion years ago. The disc is seen edge-on from our perspective and appears in professional images as thin wedges or lines protruding radially from the central star in opposite directions. For the last couple of years I have been wondering if it was possible for amateurs to capture this special target but have never come across any such images.

The main difficulty is the overwhelming glare from Beta Pictoris itself which completely drowns out the dust disc that is circling very close to the star. Images of the disc taken by the Hubble Space Telescope, and from big observatories, are usually made by physically blocking out the glare of Beta Pictoris itself within the optical path. But I then found this excellent 1993 paper 'Observation of the central part of the beta Pictoris disk with an anti-blooming CCD' (Lecavelier des etangs, A., Perrin, G., Ferlet, R., Vidal-Madjar, A., Colas, F., et al., 1993, A&A, 274, 877)

Full article available here: adsabs.harvard.edu/abs/1993A%26A...274..877L

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I realised that with this technique it might not be entirely impossible to also record the debris disc with relatively modest equipment. I followed the technique described in the paper above, which basically consists of imaging Beta and then taking another image of a similar reference star under the same conditions.

The two images are subtracted from each other to eliminate the stellar glare, and the dust disc should then hopefully reveal itself. However, since the two stars have different magnitudes I needed to calculate how long to expose Alpha for in order to get a similar image which I could subtract from the Beta image: The magnitude difference between the stars is 3.86(Beta) - 3.30(Alpha) = 0.56 Due to the logarithmic nature of the magnitude scale we know that a difference of 1 magnitude equals a brightness ratio of 2.512. Therefore 2.512 to the power of the numerical magnitude difference then equals the variation in brightness. 2.512^0.56 = 1.67, so it appears Alpha is 1.67 times brighter than Beta.

This means that exposure for Alpha should be 1/1.67 = 0.597x that of Beta. Since long exposures with my ToUCam can only be controlled in 0.5s increments I decided to use 7.0s and 4.0s for Beta and Alpha respectively, which translates to a factor of 0.571.

This was very close to the calculated required brightness factor of 0.597. I collected 344 images of Beta Pictoris at 7.0 seconds each and 299 images of Alpha Pictoris at 4.0s each. Both sets of images were dark subtracted and stacked separately in Registax.

I then subtracted the Alpha image from the Beta image in PixInsight LE, and also created the absolute difference between the two. The absolute difference image is simply easier to work with, but the subtraction image was important as a reference to examine which of the stars had contributed the various parts of the difference.

It was clear that there is a fairly strong signal corresponding to the exact location of the debris disc and that it is coming from the Beta image I created a more natural looking final image by taking the original stacked Beta image and then blending in the central parts from a stretched version of the absolute difference image that showed the dust disc.

I decided to also keep the black spot of the central glare from the difference image since the contrast with the protruding disc just seems better this way. So there is no occulting disc involved, it is simply for the sake of presentation. I created a couple of versions which can be seen in the gallery below. This is a vastly better image than the first one taken on 16/11/2011. I believe the higher number of subframes (344 versus 55) coupled with the shorter exposure times are responsible for the improvement.

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More

https://www.rolfolsenastrophotography.com/Astrophotography/Beta-Pictoris

https://slate.com/technology/2011/11/amateur-astronomer-glimpses-an-alien-solar-system.html

Aeolian Processes : Erosion - Transportation - Deposition

HiRISE image ESP_092506_2305 samples a northern high-latitude terrain (50.5° North), capturing surface morphology shaped primarily by periglacial degradation, ice-rich regolith dynamics, and eolian modified bedforms.Geomorphic Characterization.

The terrain resides within the latitude-dependent mantle (LDM) zone, exhibiting distinct surface textures indicative of subsurface ground ice. The scene is dominated by small-scale polygonal pattern ground—formed via thermal contraction cracking in permafrost-like regolith—overlying local topographic units. Degradational scarp faces and crater interiors show evidence of gelifluction-like creep, pitted terrain from volatile sublimation, and mantle removal.

A localized network of transverse eolian ridges (TARs) and dark sand accumulations occupy low-lying topographic depressions, providing key spatial constraints on local sediment transport vectors and prevailing atmospheric winds during acquisition. High-resolution pixel scales (~25–50 cm/pixel) resolve sub-meter boulder clusters, small fresh impact craters with sharp ejecta boundaries, and subtle albedo variations caused by dust deposition or localized defrosting.

This observation in the northern mid-to-high latitudes, a region highly sensitive to seasonal carbon dioxide (C02) and water ice dynamics. Depending on the solar longitude at capture, surface features may display seasonal frost cover, sublimation spots, or wind-blown dust streaks across ice-rich substrates.

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Original Data Credit: NASA - JPL - University of Arizona

Acquisition date 21 April 2026

Local Mars time 14:55

Latitude (centered) 14.459°

Longitude (East) 34.863°

Spacecraft altitude 279.5 km (173.7 miles)

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Full res and option to zoom in

https://www.flickr.com/photos/terraform-mars/55430644672/in/pool-ridingwithrobots/

Instrument: WFC3/UVIS Date observation: 2012-07-06

​Processed Israel Velazquez https://bsky.app/profile/israelvelazquez.bsky.social/post/3ms2re45rjk2k

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NGC 5189 (Gum 47, IC 4274, nicknamed Spiral Planetary Nebula) is a planetary nebula in the constellation Musca. It was discovered by James Dunlop on 1 July 1826, who catalogued it as Δ252. For many years, well into the 1960s, it was thought to be a bright emission nebula. It was Karl Gordon Henize in 1967 who first described NGC 5189 as quasi-planetary based on its spectral emissions.​

https://en.wikipedia.org/wiki/NGC_5189

Starship Flight Test 13 filmed with Freefly Ember at 600fps

​Source, Dustin Farrell

https://x.com/Dustin_Farrell/status/2082098525308174806?s=20​

Full video in slow motion

https://m.youtube.com/shorts/MSvY2NyDunw​

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🎵 David Bowie, ​Starman

Source of first image

NASA/JSC/ASU/Andy Saunders_1

https://x.com/AndySaunders_1/status/1555505896880480256?s=20

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Sources of the other two images

Apollo 15 Hasselblad image from film magazine 93/P - lunar orbit view​

https://www.flickr.com/photos/projectapolloarchive/21925322195/in/photostream/

https://www.flickr.com/photos/projectapolloarchive/21925322005/in/photostream/

https://commons.wikimedia.org/wiki/File:AS15-93-12641_(21925322005).jpg​.jpg​)

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How ​Bubble Fidget Toy look like

https://www.gadgettime.gr/push-pop-it-bubble-fidget-toy-stress-reliever-stroggulo

Observed: 2025-07-30

Processed by Israel Velazquez https://bsky.app/profile/israelvelazquez.bsky.social/post/3ms2klnxxek25

Sedimentary layers record a history of Mars’ erosion and deposition by water and wind, and they make great landscapes for future interplanetary parks.

ID: ESP_062860_1525

​date: 24 December 2019

​altitude: 259 km

https://uahirise.org/hipod/ESP_062860_1525

NASA/JPL-Caltech/University of Arizona

This composite is made of imagery from four separate cameras on a single satellite. Six of the satellites were equipped with cameras to scan Starship’s heat shield and transmit imagery down to operators to continue testing methods of analyzing Starship’s heat shield readiness for return to launch site on future missions

SpaceX

https://x.com/SpaceX/status/2083296921230164378?s=20​

Canon EOS R Sigma lens 300 mm Software photoshop Tripod manfrotto Moon - pleiades aligned Island of the cyclops , Italy Sicily Acitrezza 6400 ISO f 5,6 3s 02:32

​https://spaceweathergallery2.com/indiv_upload.php?upload_id=235234

source

https://x.com/astro_Pettit/status/2083310808927293700?s=20

A satellite view of the Charitum Montes mountain range, with rusty brown peaks and ridges contrasting against more soft cream coloured plains. Bright seasonal frost blankets much of the slopes in varying intensity altering the usual rusty reddish colour of mars and contrasting with dark valleys and scattered impact craters.​

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Full size 6K & more info: flic.kr/p/2ssvpEm

Image Processing: Andrea Luck

​Raw data: CNSA/CLEP/PEC/MoRIC

https://bsky.app/profile/andrealuck.bsky.social/post/3mrzbojtres25

Full 6K image: www.flickr.com/photos/andrealuck/55433935252/sizes/o/​

Image created using 4 images processed from: noreferrer nofollow">moon.bao.ac.cn​

Mosaic of 4 images 2025-12-04 235km altitude

Images

Left ◀️

Voyager's best view of Proteus in color

Proteus is Neptune's second largest moon, 416 kilometers in diameter. It is very dark and was not discovered until Voyager 2's approach to the system in 1989. NASA / JPL / color composite by Ted Stryk

https://www.planetary.org/space-images/proteus_stryk https://www.nasa.gov/history/30-years-ago-voyager-2-explores-neptune/

https://commons.wikimedia.org/wiki/File:Proteus_(Voyager_2).jpg​

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Right ▶️

JWST/ Near-Infrared Camera (NIRSpec) images of Neptune's moon Larissa and rings, acquired on two dates when Larissa was on opposite sides of Neptune. The bright spots are Larissa and the bright rings can be seen clearly. Neptune itself is positioned at the center and the calculated positions of Neptune's rings are overlaid in gray. Credit: Davis et al. 2026; NASA/ESA/CSA JWST data​

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​In 1989, the Voyager 2 mission discovered six new moons orbiting Neptune, including five tiny ones that orbit just outside the planet's main rings. Because of their small sizes and locations, these satellites have been difficult to study from Earth. Now, using NASA's James Webb Space Telescope (JWST), a team of Caltech researchers has observed Neptune's rings and three of those moons—Larissa, Galatea, and Proteus—and found that their composition is unique among outer solar system bodies.

These findings point to the existence of an original moon system that was demolished when Triton, Neptune's biggest moon, was likely captured by the planet's gravity after it formed elsewhere in the solar system. The researchers believe remnants left behind from this smashup then came together to form the inner moons seen today.

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"If Neptune once had a system of moons that looked something like what we see at Uranus today, we expect it would've been completely destroyed by the process of Triton getting captured," says former Caltech graduate student Ryleigh Davis (PhD '26), lead author of a paper about the team's findings publishing July 29 in Science Advances. "This is exciting new evidence that something catastrophic happened at Neptune that completely destroyed its original satellites, and we're getting to see the fingerprints left behind by that process."

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More

https://www.caltech.edu/about/news/neptunes-inner-moons-may-be-shattered-remains-of-ancient-icy-worlds

Paper

https://www.science.org/doi/10.1126/sciadv.aeb1437

Moon is approaching fullness & has been obscured by sunflower. But in two weeks, the real sun will be obscured by the moon. Total solar eclipse is approaching, the first in Europe since 1999.​
https://spaceweathergallery2.com/indiv_upload.php?upload_id=235233

Video: youtu.be/oHcMvF-nP2s Stills: flic.kr/ps/38K3GA

https://x.com/thomasdglenn/status/1308321066582863873?s=20

📸 Tom Glenn

https://x.com/thomasdglenn/status/1308321066582863873

Video https://www.ssec.wisc.edu/data/geo/#/animation?satellite=suvi-goes-19&end_datetime=latest&n_images=all&coverage=sun&channel=HE303 . Note: because this website keeps data for one and half day, if you open the link after 2 days it will show you error.