Daniel Machacek
LightNews LightNews
banner
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
andrealuck.bsky.social
A new version of Saturn by JWST Space Telescope

Full size & more info: flic.kr/p/2rHUzZs 🔭🧪
Credit: NASA/ESA/CSA/STScI/AndreaLuck

Instrument: NIRCAM
Target: Saturn-Centre
Time: 2023-06-24 (not a new release)
Filter: F322W2-F323N, F212 (partially reconstructed)
PI: Leigh Fletcher ID: 1247
In this JWST image, Saturn appears as a pale-gold sphere with faint horizontal bands, encircled by a bright, thin oval ring. Three tiny white points to the lower left represent the satellites Dione, Enceladus and Tethys against the black background.
November 28, 2025 at 4:18 PM
Reposted by Daniel Machacek
armandsarlangue.bsky.social
Shapes & colors of Landmannalaugar.
Captured from a Cessna plane flying over the highlands of Iceland…

#photography #art #nature #landscape
November 26, 2025 at 2:56 PM
Reposted by Daniel Machacek
pomarede.bsky.social
Chandra's Fall Collection 🍂

A quartet of images that invoke themes associated with autumn

1. NGC 6334 nebula: Cosmic leaves blowing
2. SNR G272.2-03.2: The Space Pumpkin
3. R Aquarii: A cosmic sweater
4. NGC 2207 and IC 2163: A pair of galactic cornucucopia

chandra.harvard.edu/photo/2025/f... 🔭🧪
For many, nothing evokes fall more than fallen leaves. In this view of NGC 6334, glowing pockets of dust and gas in the nebula resemble leaves that have been picked up by a wind gust. This region is actually home to strong winds blowing from the young stars that have formed there. This image contains X-ray data from Chandra (blue, green, and yellow) that shows the effects of these winds, which have been combined with infrared data from the now-retired Spitzer Space Telescope (red, brown), which shows the dust and gas that fuels the growing stars. Credit: X-ray: NASA/SAO/CXC; Infrared: NASA/JPL/CalTech/Spitzer; Image Processing: NASA/CXC/SAO/J. Schmidt Born after a violent explosion of a star, this cosmic gourd is the supernova remnant G272.2-03.2. X-ray observations (orange and magenta) from Chandra provide evidence that G272 is the result of a Type Ia supernova explosion, where a white dwarf star pulls material from a companion star until it triggers a thermonuclear explosion and obliterates the star. The inside of the “pumpkin” is superheated gas that is filling the space cleared out by the explosion as it moves outward. Credit: X-ray: NASA/CXC/SA0; Optical: NOIRLab/DECaPS2; Image Processing: NASA/CXC/SAO/L. Frattare Multiple telescopes teamed up to capture an image that looks like a cozy sweater with fuzzy arms. X-rays from Chandra and ESA’s XMM-Newton (purple), optical light data from Hubble and the Very Large Telescope in Chile (orange, red, and violet), and an optical image from astrophotographer Bob Fera (deep blue) combine to reveal R Aquarii. Nestled within the cozy ‘body’ of R Aquarii is a pair of stars where a white dwarf is pulling material from a much larger red giant companion. When enough material accumulates on the surface of the white dwarf, it triggers an outburst that sends a jet out into space. Over time, these jets twist and loop around each other weaving the structure seen today. Credit: X-ray: NASA/CXC/SAO; ESA/XMM-Newton; Optical HST: NASA/ESA/STScI; Optical Ground: Deep Space Remote observatories/B. Fera; ESO/VLT; Image Processing: NASA/CXC/SAO/L. Frattare A cornucopia is a horn-shaped basket that traditionally carries fruits and vegetables. There is nothing edible in this pair of galactic cornucopias but there are a bounty of stars, dust, and other ingredients than make up these two spiral galaxies, known as NGC 2207 (right) and IC 2163 (left), that we see face-on. This view of NGC 2207 and IC 2163 takes a James Webb infrared image (white, gray, and red) and adds the X-ray view from Chandra (blue). Together, it is quite an eye-catching result. Credit: X-ray: NASA/CXC/SAO; Infrared: NASA/ESA/CSA/STScI/Webb; Image Processing: NASA/CXC/SAO/L. Frattare
November 25, 2025 at 12:59 PM
Reposted by Daniel Machacek
theplanetaryguy.bsky.social
This is an incredible image of comet 3I/ATLAS, taken by Satoru Murata ICQ Comet Observations group on 16 November 2025 from western New Mexico.

Structure within the major dust tail from the comet is clearly visible, together with two smaller jets trailing the nucleus and maybe even an anti-tail.
A bright, greeny–white splotch in the centre of the image is the nucleus and coma of comet 3I/ATLAS. To the upper right streams the major dust tail. The background comprises distant stars against a black background, with the NGC 4691 galaxy at upper left.
November 24, 2025 at 11:50 PM
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
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
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
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