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danielmachacek.bsky.social
Daniel Machacek
@danielmachacek.bsky.social
1.5K followers 170 following 100 posts
Space nerd, Image processor,
Lazy photographer,
Humanist
Posts Replies Media Videos
Reposted by Daniel Machacek
jackiebranc.site
🔴 #Mars #Perseverance Sol 1688: Front Left Hazard Avoidance Camera ( #Hazcam ) / enhanced

Nov. 19, 2025 (Sol 1688) / 15:03:12

source image: Mars_Perseverance_FLF_1688_0816801271_691ECM_N0813270FHAZ02418_01_295J

Image Credit: #NASA / #JPL-Caltech / Jackie Branc

#RedPlanet
Mars Perseverance Sol 1688: Front Left Hazard Avoidance Camera (Hazcam) / enhanced. NASA's Mars Perseverance rover acquired this image of the area in front of it using its onboard Front Left Hazard Avoidance Camera A. Nov. 19, 2025 (Sol 1688) / 15:03:12 source image: Mars_Perseverance_FLF_1688_0816801271_691ECM_N0813270FHAZ02418_01_295J Image Credit: NASA/JPL-Caltech/Jackie Branc
November 23, 2025 at 9:50 AM
Reposted by Daniel Machacek
kosmi.bsky.social
Eruption of Hayli Gubbi volcano in Ethiopia.

Images taken today by Meteosat weather satellite.

Volcanic ash & SO2.
November 23, 2025 at 6:26 PM
Reposted by Daniel Machacek
wed-explorer.bsky.social
🌋 #HayliGubbi — a once-dormant shield volcano in Ethiopia’s Afar Rift — has exploded to life. Its ash plume soared to 45,000 ft, signaling a rare, high-energy event in a volcano with no known eruptions for millennia.

🛰 #NASA
🌍 #worldview
November 23, 2025 at 6:56 PM
Reposted by Daniel Machacek
martian-observer.art
NASA Mars Perseverance Rover at Jezero crater
Sol 1629 (19th September, 2025)

Subject "Phippsaksla," now revealed to be high in iron and nickel - suggesting it may have formed elsewhere in the solar system

ZCAM09712
Site 79 / 488
📷 Credits: NASA / JPL-Caltech / ASU / MSSS / Martian-Observer
A colour photo from the Martian surface shows a close-up of a large tan and pale orange rock pockmarked with numerous large holes, which are mostly filled with dark, rust-coloured sand. In the background, pale orange, very rocky terrain is visible in the top third of the image
November 19, 2025 at 7:46 PM
Reposted by Daniel Machacek
melina-iras07572.bsky.social
(1/n) Image thread about the LHA 120-N 159 (or just N159) region with #JWST NIRCam. Here the filters F300M (blue), F335M (red) and F460M (green) 🔭
I made F335M red because this is PAH, otherwise the entire image would be green.
Full resolution: commons.wikimedia.org/wiki/File:LH...
An orange-red nebula with cyan filling the voids.
November 21, 2025 at 6:38 AM
Reposted by Daniel Machacek
landru79.bsky.social
James #Webb Space Telescope #JWST

Vast Exploration for Nascent, Unexplored Sources
SCI: High-redshift Galaxies and the Distant Universe

TARG: #A68
2025-11-21
PI: Fujimoto, Seiji
NIRCAM 444 410 356 300 277 210 200 150 115 090

yuval-harpaz.github.io/astro/jwst_l...

NASA/ESA/CSA/STScI/j. Roger
November 22, 2025 at 5:39 PM
Reposted by Daniel Machacek
ddavisspaceart.bsky.social
The view from from the windows of the Apollo 12 Lunar Module just after landing 56 years ago. Apollo 12 was a great mission although the loss of the color TV camera at the beginning of the first EVA was a blow to live network coverage. In due time we saw the color and B&W photos the crew returned.
This is a panorama assembled from numerous photographs made through the windows of the Apollo 12 Lunar Module 'Intrepid' shortly after landing on November 19, 1969. After the successful first landing by Apollo 11 in July the second mission refined methods to make precision landings. They succeeded, and landed within walking distance to the derelict probe Surveyor 3 which had touched down on April 20 1967. The scenery shows the saturated cratered surface typical of the Lunar lava plains, or 'Maria', with impact craters of all size ranges covering the pulverized surface. This is a landscape of eternity, with only the locations of the innumerable craters changing over time as new ones gradually erase the older ones. The shadow of the LM stretches toward the horizon, with a bright 'Heiligenschein' glow centered on the antisolar point. This brightening is caused by the lack of visible cast shadows behind the illuminated irregular surfaces, making a 'zero phase' point, and enhanced by the presence of tiny glass beads scattered in the upper surface layer, or 'regolith'. Just as this appears around where the shadow of the observer would be, one can see a comparable effect when walking in the early morning across a wide field of grass covered with dew. Near the shadow of your head a brightening will appear as the many round drops refract the light so a lot of it returns in roughly the direction it came from. Road markers and signs also use paint with imbedded glass beads to reflect light back at autos.
November 20, 2025 at 10:39 AM
Reposted by Daniel Machacek
rsimmon.bsky.social
Interesting post on oblique imagery from Vantor (née Maxar): go.vantor.com/Imagery-Lead...
Highly oblique satellite image of downtown Manhattan and surrounding urban areas. The Hudson and East Rivers stand out against the many many many gray buildings.
November 20, 2025 at 11:23 PM
danielmachacek.bsky.social
As far as the weather forecast goes, it looks like I only had one hour to try to get a pictures of interstellar comet 3I/Atlas.
And it worked!
Even the tail is faintly visible.
It looks like typical comet even with small equipment - Olympus E-M1II with 75-300 mm lens and Minitrack LX2 tracker.
Long exposure image composite of interstellat comet 3I/Atlas. The comet is visible like green spot with a faint tail in the center of the image with star trails around it. Total exposure around 50 minutes. The source images for the composite image were taken on November 19, 2025.
November 20, 2025 at 11:27 PM
Reposted by Daniel Machacek
uahirise.bsky.social
HiRISE Image of Exocomet 3I/ATLAS!

On 2 October 2025, MRO turned away from Mars to image 3I/ATLAS, only the third interstellar object ever observed passing through our solar system!

https://www.uahirise.org/releases/3i-atlas/
November 19, 2025 at 9:01 PM
Reposted by Daniel Machacek
andrealuck.bsky.social
Zoom in on Planetary Nebula NGC 6072 by JWST

Full video animation: flic.kr/p/2rFniEA
Credit: NASA/ESA/CSA/STScI/j.Roger/AndreaLuck CC BY 🔭🧪

Full image 5K & more info below ⬇️
November 14, 2025 at 2:03 PM
Reposted by Daniel Machacek
kosmi.bsky.social
Autumn colors at the northern slope of Etna.

Image taken today by Sentinel-2.
November 12, 2025 at 2:46 PM
Reposted by Daniel Machacek
melina-iras07572.bsky.social
Debris disks around HD 61005 and HD 181327 with #JWST NIRCam coronagraph. 🔭 ⭐+⚫= #DebrisDisk 💿
commons.wikimedia.org/wiki/File:HD... and commons.wikimedia.org/wiki/File:HD...
HD 61005 disk is shaped like a fan. HD 181327 disk is shaped like a ring
November 18, 2025 at 7:08 AM
Reposted by Daniel Machacek
landru79.bsky.social
#CASSINI HUYGENS #SATURN MISSION

Target Name: #Rhea
Distance: 266874km
Time: 2006-01-18
Narrow Angle Filter: 4x Ir1 Grn UV3 filters

opus.pds-rings.seti.org/opus/#/COISS...

NASA/JPL/j. Roger
November 17, 2025 at 3:06 PM
Reposted by Daniel Machacek
melina-iras07572.bsky.social
ESA #Euclid (@ec-euclid.bsky.social) images of star-formation in Orion A (dark clouds connected to the Orion Nebula). Filters: Y, J, H 🔭 #star-formation
7 images of different protostars or their outflow. HOPS 216 in the lower left shows a narrow jet.
November 14, 2025 at 9:32 AM
Reposted by Daniel Machacek
nev-t.bsky.social
MSL 4707 CC
© NASA/JPL-Caltech/LANL/CNES/IRAP/NeV-T

Gigapan - gigapan.com/gigapans/238...
GIGAmacro - viewer.gigamacro.com/view/BGXaoY6...
Gigapan Website - www.nev-t-gigamacros.com
#Mars #science #NASA
November 4, 2025 at 11:20 PM
Reposted by Daniel Machacek
kosmi.bsky.social
Krasheninnikov volcano in Kamchatka.

Image taken today by Sentinel-2.
October 30, 2025 at 9:28 AM
Reposted by Daniel Machacek
p-s-v.bsky.social
The beautiful Comet LEMMON's tail

The comet is going out with a bang. The tail was as bright as ever last night. Captured with Celestron RASA telescope, ZWO ASI533MC color camera, and an Antlia L-Filter.

📸 Chuck's Astrophotography (Chuck Ayoub)
x.com/chucksastrop...
October 31, 2025 at 7:18 PM
Reposted by Daniel Machacek
andrealuck.bsky.social
1/3 You might’ve seen last week’s newly released JWST data of Planetary Nebula NGC2440, here’s my take on it 😵

Full size 4K image and more info in this thread 🧵 🔭🧪

Credit: NASA/ESA/CSA/STScI/j. Roger/Andrea Luck CC BY
November 1, 2025 at 2:04 PM
Reposted by Daniel Machacek
tedstryk.bsky.social
The clouds of Saturn on August 21, 1981, from Voyager 1
The clouds of Saturn. Several eddys can be seen.
November 1, 2025 at 4:42 PM
Reposted by Daniel Machacek
p-s-v.bsky.social
Comet A6 lemmon

Captured with 16 inch Boller & Chivens🔭, f18, 7400mm focal length. The fov is only 6 arc mins, so really close into head of comet. Oct 29th, 10pm PST. 30s X 10 images. Such a dynamic and photogenic comet.

📸Debra Ceravolo
app.astrobin.com/search?p=eJy...
November 1, 2025 at 4:48 PM
Reposted by Daniel Machacek
climateofgavin.bsky.social
This is cool, 6 million year old ice from Antartica with inferred temperature ~12°C warmer than the late Pleistocene. No CO2 level yet! (That will be highly anticipated!)

www.pnas.org/doi/10.1073/...
PNAS
Proceedings of the National Academy of Sciences (PNAS), a peer reviewed journal of the National Academy of Sciences (NAS) - an authoritative source of high-impact, original research that broadly spans...
www.pnas.org
October 28, 2025 at 8:51 PM
Reposted by Daniel Machacek
theplanetaryguy.bsky.social
Another STUNNING image from JWST, this time of the Red Spider Nebula—the vast, wispy, gaseous remains of a now-dead star, the white dwarf core still glowing in the centre.
A series of wispy, blue strands emanate from the centre of the image, which is glowing orangey–red with a little pink. The background is FESTOONED with stars, all set against a black backdrop.
October 28, 2025 at 5:59 PM
Reposted by Daniel Machacek
kosmi.bsky.social
The eye of Hurricane Melissa.

Image taken today by Sentinel-2.
October 28, 2025 at 7:22 PM
Reposted by Daniel Machacek
melina-iras07572.bsky.social
#Pluto system with #Hubble from July 2019. Four images were taken. The movement of the moons #Nix and #Hydra being anti-clockwise.

program: archive.stsci.edu/proposal_sea...
Pluto in the middle and 4 copies of moon Charon around it. The smaller moons Nix and Hydra are present with 4 copies each on the left side of the image.
October 27, 2025 at 1:04 PM