Daniel Machacek

Watercolor painting with two aerial views of Mount St. Helens. At upper right, the pre-1980 snowcapped cone rises above green, forested ridges and a blue Spirit Lake. Filling most of the image, the post-eruption scene shows a low, blasted crater, brown landslide hummocks, and a dark, debris-filled lake. Dee Molenaar / U.S. Geological Survey (USGS)

#MSH45 | Watercolors
One of the most powerful “before and afters” of Mount St. Helens isn’t a photo at all, it’s this watercolor.

Legendary PNW mountaineer Dee Molenaar painted the graceful pre-1980 cone and Spirit Lake basin alongside the torn-open crater and devastated landscape that followed.

Dynamic surface patterns in the Arabian Sea: turquoise vortices formed by sediment-rich currents and nutrient mixing, revealing active coastal circulation captured in high resolution.🌀🔵🟢

🛰 #Sentinel2

Mosaic of ☄️Lemmon C/2025 A6 on Oct.26, 2025. Taken with Leica Apo-Telyt f-180/4.0 telephoto lens&Asi 294. To emphasize ion tail, only blue images were used for L-image. Field 1 4x5.5min, field 2 5x6min.

📸 Michael Jäger
www.facebook.com/photo/?fbid=...

Image of the Martian landscape as seen by the Curiosity rover exploring Mt Sharp in Gale Crater on Mars... Some gorgeous new images came back from Curiosity on Mars... I don't have the geology knowledge to describe what we're seeing here, or the right words to describe just how beautiful this landscape is... NASA/JPL-Caltech/MSSS/fredk/S Atkinson

Image of the Martian landscape as seen by the Curiosity rover exploring Mt Sharp in Gale Crater on Mars... I don't have the geology knowledge to describe what we're seeing here, or the right words to describe just how beautiful this landscape is... NASA/JPL-Caltech/MSSS/fredk/S Atkinson

Some gorgeous new images came back from Curiosity on Mars... Just going to have to post these because I don't have the geology knowledge to describe what we're seeing here, or the right words to describe just how beautiful this landscape is... NASA/JPL-Caltech/MSSS/fredk/S Atkinson

Image is based on mosaic of two images from the closest distance (lor_0798443319, lor_0798443321).
The left part of the image is reconstructed from several L'Lorri images showing the entire asteroid, which were then warped onto the rest of the image using a reference image from the TTCAM camera.

Reconstructed global view of skittle-shaped asteroid 52246 Donaldjohanson from Lucy spacecraft. Image has color but Donaldjohanson is essentially grey object and color images were taken only at very low resolution. Asteroid Donaldjohanson has two cratered lobes, one larger and one smaller, connected by a smoother neck.

Asteroid 52246 Donaldjohanson from distance 1060 ㎞.
Reconstructed global view at 4 m/pix from multiple deconvolved images from L'LORRI🎥 + lowres color (Orange, Green, Violet filters as RGB) data from MVIC🎥 onboard Lucy spacecraft.
Date: April 20, 2025.
Credit: NASA/Goddard/SwRI/JHU APL/D. Machacek

YouTube video by AP Archive USA - Galileo Spacecraft Jupiter Probe Animation

30 years ago yesterday the Galileo probe entered the atmosphere of Jupiter. I made this animation for NASA Ames using traditional methods, paint on acetate cels and shot on 35mm film. It is real time like the old Apollo news animations. My sequences start at +35 secs
www.youtube.com/watch?v=iUtI...

A mosaic of ochre toned images capturing a Martian landscape.

A zoom on the first image capturing a landscape of dunes and hills.

A zoom on the first image capturing rocks and sands.

A zoom on the first image capturing a landscape of dunes.

A mosaic captured by Perseverance three days ago with her Mastcam Zoom camera, somewhere on the edge of the rim of Jezero Crater

🔍 zoomhub.net/5r5nw

#Mars Dec. 5, 2025 - Sol 1704 🧪🔭
Credits images: NASA/JPL-Caltech/ASU

A crescent Jupiter from the Galileo orbiter

Io, moon of Jupiter, from the Galileo Orbiter

The rings of Jupiter and Europa, moon of Jupiter, from the Galileo orbiter. In this view, Europa is eclipsed by the planet Jupiter, which is why it is so dim relative to the rings.

Callisto, moon of Jupiter from the Galileo orbiter.

Today in 1989, the Space Shuttle Atlantis launched the Galileo spacecraft, the first orbiter and entry probe at a giant planet. When I watch it recede from the shuttle, I can't help but want to scream to open the antenna first (it never opened). They were still able to salvage an amazing mission.

Jupiter and at least two moons.

Tried something new. I used WinJUPOS to de-rotate the #JWST #Saturn 🪐 images. Filters (F150W2, F164N) and F212N. Makes the storms and other features better visible.🔭 #astronomy
Observation date: 2024-11-29

Aurora from the flight deck
📸 Matt Melnyk
Dec 7, 2025
Greenland

This flight was from Calgary Ab. to London UK at 37,000 feet. This was view over Greenland. The almost full moon behind us, lit up the ground and clouds below very nicely.

spaceweathergallery2.com/indiv_upload...

Colors festival in Iceland…Landmannalaugar photographed from a Cessna plane ✈️

#photography #art #nature #landscape #aerial

On this day back in 1995, the Galileo spacecraft performed its Jupiter orbit insertion burn. Due to problems with the tape recorder, no images were taken. However, these images showing the Great Red Spot were obtained on June 26, 1996 during the G1 orbit. The contrast and color has been exaggerated.

Crazy work... #supermoon of Dec 5 with mineral colors. A large size mosaic with #Celestron C9.25 EdgeHD and #Nikon and #PlayerOne cameras. All sizes up to 140MP can be seen here: www.flickr.com/photos/dodi-... (click on all sizes, not from a phone...)
#astronomy #moon #astrophotography #space #hires

The first image of #3IAtlas from ESA's JUICE mission is in!

I reprocessed the image to remove hot pixels (left) and the stars (right) to make the tail easier to see.

Credit: ESA/Juice/NavCam
Processing: Simeon Schmauß

The main problem is that space telescopes in Low Earth Orbit share the similar orbits as the telecommunication satellites.

Here we show a simplified representation of the increased orbital crowding between 1958 (Sputnik) and the projected satellite population at the end of the next decade.

A figure illustrating the rotation of neutral hydrogen (right) in galaxies residing in an extended filament (middle), where the galaxies exhibit a coherent bulk rotational motion tracing the large-scale cosmic web (left). Credit: Lyla Jung

Astronomers have discovered one of the largest spinning structures in the known universe.

This "cosmic filament" is 50 million light years long & contains 100s of galaxies that seem to be rotating in alignment. It's part of an even greater web linking the cosmos. 🧪🔭

www.ox.ac.uk/news/2025-12...

Our #JUICE spacecraft captured comet #3IATLAS during its active phase, showing its glowing coma, plasma tail, and maybe even a dust tail.

The full data will arrive in February, but here is a sneak preview from JUICE's navigation camera.

More info 👉 www.esa.int/ESA_Multimed...

In northeastern Africa, within the driest part of the Sahara, dark rocky outcrops rise above pale desert sands. Several of these formations, including Jabal Arakanū, display striking ring-shaped structures.

Rings of Rock in the Sahara: Jabal Arkanū

Captured by the Expedition 73 crew onboard the ISS

science.nasa.gov/earth/earth-... 🧪🔭 #Earth

Mars Perseverance Sol 1695: Right Mastcam-Z Camera / enhanced. NASA's Mars Perseverance rover acquired this image using its Right Mastcam-Z camera. Mastcam-Z is a pair of cameras located high on the rover's mast. Nov. 26, 2025 (Sol 1695), 12:20:38 source image: Mars_Perseverance_ZR0_1695_0817412658_818EBY_N0813608ZCAM09783_0340LMJ Image Credit: NASA/JPL-Caltech/ASU/Jackie Branc

🔴 #Mars #Perseverance Sol 1695: Right #Mastcam-Z Camera / enhanced

Nov. 26, 2025 (Sol 1695), 12:20:38

source image: Mars_Perseverance_ZR0_1695_0817412658_818EBY_N0813608ZCAM09783_0340LMJ

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

#RedPlanet

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.

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

Today's view of Kamchatka volcanoes.

Images taken by Sentinel-2.

Shapes & colors of Landmannalaugar.
Captured from a Cessna plane flying over the highlands of Iceland…

#photography #art #nature #landscape

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

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... 🔭🧪

Hayli Gubbi volcano in Ethiopia.

Eruptionr has formed new crater 😊

Image taken today by Sentinel-2.

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.

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.

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

🔴 #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

Eruption of Hayli Gubbi volcano in Ethiopia.

Images taken today by Meteosat weather satellite.

Volcanic ash & SO2.

🌋 #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