Enhanced color image shows a close-up of extensive, large dunes in the north polar region of Mars. There is seasonal, bright ice on the slipface of many of the dunes, and dark patches between the dunes as well.

HiPOD: Translucent Ice on Dunes

At the time of year we took the image, the whole scene was probably covered in carbon dioxide ice. Some of this ice is translucent, so you can see the dark dunes through it.

https://uahirise.org/hipod/ESP_076844_2550
NASA/JPL-Caltech/University of Arizona
#Mars

Full size image: www.flickr.com/photos/192271236@N03/54559293995/sizes/o/ see license below Credit: ESA/DLR/FUBerlin/AndreaLuck CC BY Check out the video animation: flic.kr/p/2r87qXE Image created processing data from: psa.esa.int Mission: ESA Mars Express North is up Instrument: HRSC Orbit: 25823 Time: 2024-06-15T12:32:26.070Z Raw Data: HP823_0000_BL4 HP823_0000_GR4 HP823_0000_RE4 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/

Mars - Cloudy Arsia Mons - ESA Mars Express - From Andrea Luck (andrealuck.bsky.social) - https://flic.kr/p/2r8dDhF

These two images part of a full filter set captured for multispectral analysis.

Subject seen through Mastcam-Z's right 'eye': The part of the rock that was under the regolith looks darker, as if wet, though it can't be, and regolith appears to have adhered to it.

Same subject but seen through Mastcam-Z's left 'eye'

NASA Mars Perseverance Rover Sol 1,834 (18th April, 2026)

Small rock partially displaced from the grainy dust covered regolith by the rover's passage

MastCam-Z (L+R) ZCAM04354
Captured 13:22-23 lmst
S/D: 087/4184
CC BY-NC-SA 4.0 Credits: NASA / JPL-Caltech / ASU / MSSS / Martian-Observer

First Video of NASA’s Ingenuity Mars Helicopter in Flight, Includes Takeoff and Landing (High-Res) YouTube video by NASA Jet Propulsion Laboratory

Martian Memories

Five years ago on this day, April 19, 2021, first flight of Ingenuity, the little Mars Helicopter, at Van Zyl Overlook in Jezero Crater. The historic moment is captured by Perseverance with her Mastcam Zoom camera. #Mars 🧪🔭

www.youtube.com/watch?v=wMnO...

🟠 PERSEVERANCE 1829 SC © NASA/JPL-Caltech/LANL/CNES/IRAP/NeV-T

Q-VIEW - live.staticflickr.com/65535/552140...
GIGAmacro - viewer.gigamacro.com/view/rt5KIW8...
Gigapan Website - www.nev-t-gigamacros.com
#Mars #science #NASA

Tiny little butte standing in the middle of the valley, captured two days ago by Curiosity. The rover spotted it 320 sols ago from a distance (see quoted post) and is now way closer to it.

#Mars Apr. 15, 2026 - Sol 4867 🧪🔭
Credit images: NASA/JPL-Caltech/MSSS/fredk

HiRISE 10K: Light-Toned Rocks in Terra Meridiani

This observation shows part of a broad expanse of bare rock in Terra Meridiani.

Full cutout on Flickr: https://flic.kr/p/2s7UuL4

NASA/JPL-Caltech/University of Arizona
#Mars #NASA #science

Derbyshire farmer taking action to stop TikTokers hugging cows Alex Birch says he plans to out-breed his highland cows to make them

A Derbyshire farmer, clearly fed up with a growing trend of 'TikTokers' and social media tourists bothering his livestock, says he plans to breed-out his highland cows most attractive features to make them "less photogenic"

Image cutout shows large, elongated and dark dunes on the surface of Mars.

HiRISE 8K: Dunes in Abalos Undae

It is possible that the dunes are no longer migrating and that the tiny ripples on them are the only active parts of the dunes today.

Full cutout on Flickr: https://flic.kr/p/2s7HBQR
NASA/JPL-Caltech/University of Arizona
#Mars #NASA #science

Image shows a large impact crater and a shallow valley extending from it and then branching into two channels. There are light-toned dunes within the valleys.

A close-up of the light-toned dunes that are aligned north-south on the surface of Mars.

HiPOD: Valley Networks of Mars

This image features dense, highly branched valley networks, two branches of which seem to originate in circular features: ancient crater floors, or something else?

https://uahirise.org/hipod/ESP_076869_1535
NASA/JPL-Caltech/University of Arizona
#Mars #science #NASA

Orbital view of a cloud formation over the icy north polar cap of Mars. The main cloud formation sits in the lower part of the ice cap and appears bright white, shifting to a slightly dustier tone closer to the ice cap. It resembles cirrus like clouds, formed in patches and curved bands shaped by wind. The polar cap below shows a spiral like structure, bordered by rust colored terrain with a faint hazy appearance.

CNSA’s Tianwen-1 mission has recently released new images of Mars, including this view of the north polar cap showing a very cool cloud formation.

Full size 4K & more info: flic.kr/p/2s819o9 🔭🧪
Image Processing: Andrea Luck
Raw Images: CNSA/CLEP/PEC/MoRIC

Those are 2 images taken on 2025-08-09

NASA has given approval for the Rosalind Franklin Support and Augmentation (ROSA) project to begin implementation. This is the addl support NASA is providing to ESA to get the ExoMars Rosalind Franklin rover w/drill to Mars. science.nasa.gov/blogs/mars-r...

A grey-scale image of the small Antofagasta crater, captured by the right Navigation camera of the Mars rover Curiosity, on Sol 4865.

A map displaying the current location and path of the Mars rover Curiosity (Sol 4865). The rover's position is close to a small crater.

Curiosity approaching a small crater, about 10 meters (32 feet) in diameter. The mission team named this crater “Antofagasta”.

Check out Abigail Fraeman's latest blog post for more insights on the forthcoming study of this crater:

science.nasa.gov/blog/curiosi... @abbyfrae.bsky.social

#Mars 🧪🔭

Image shows a field of dunes called “barchan” dunes on flat terrain. Some of the dunes are extended outward like ribbons across the surace. There are also large mounds of bedrock where dunes have swept around.

Close-up view of a large, rocky mound and several dunes nearby. The surrounding terrain is flat.

HiPOD: Downwind of the Barchan Dunes

The science rationale for this beautiful image is to look for and measure seasonal changes due to wind (aeolian) processes. High flux dunes upwind, but how do they compare downwind?

https://uahirise.org/hipod/ESP_076841_1380
#Mars #science #NASA

A wide view of the Martian surface seen from above. The landscape is split into two contrasting halves: the left side is lighter, sandy beige with faint ridges and cracks, while the right side is darker, reddish-brown and more heavily cratered. The boundary between the two regions is uneven and gradual, creating a striking colour contrast across the scene.

Mars Express has captured a blanket of dark ash creeping across the Red Planet.

It has spread hundreds of kilometres in less than 50 years.

🔭 🧪
#planetsci
1/4

Rocks and sand. A lot of the rocks have polygonal features on them. NASA/JPL-Caltech/MSSS/Kevin M. Gill

The workspace in front of the Mars Curiosity Rover following its Sol 4865 drive this weekend.

flic.kr/p/2s7yKGe

A triangular rock surrounded by sand and broken-off nodules. The rock is flakey and has sharp bits all over it that look like they’d all break off if you moved a gloved hand across them. NASA/JPL-Caltech/MSSS/Kevin M. Gill

Check out how flakey this Mars rock is. I wonder how it got like that…

Image taken by the Mars Curiosity Rover’s MastCam this weekend on Sol 4863.

flic.kr/p/2s7tmST

As you may know, I have a particular thing for Martian sand ripples - anyway here's a crop from the Perseverance rover Mastcam-Z image that particularly caught my eye.

NASA Mars2020 Perseverance Mastcam-Z (Crop) Sol 1827 Captured around 1PM local time, on Sol-1827 (10th April, 2026) MastCam-Z (Right) ZCAM09883 (cropped) Site: 87 Drive: 4140 CC BY-NC-SA 4.0 Credits: NASA / JPL-Caltech / ASU / MSSS / Martian-Observer

NASA Mars Perseverance Rover Sol 1,827 (10th April, 2026)

MastCam-Z (Right) ZCAM09883 (cropped)
Captured around 1PM local time

S/D: 087/4140
CC BY-NC-SA 4.0 Credits: NASA / JPL-Caltech / ASU / MSSS / Martian-Observer

Tap in 🔎 on my flickr www.flickr.com/photos/13433...

3D image view of a landform that stands in relief to flatter terrain but also have numerous linear ridges all across it.

HiRISE 3D: Ridges Associated with Medusae Fossae

A giant snowflake would also suffice for a description here. These ridges are too straight to be fluvial and too networked to be faults, but how did they form?

www.uahirise.org/anaglyph/ESP_037048_1840...
#Mars #NASA

If successfully launched to Mars in 2028, the Space Reactor-1 Freedom craft would host a small nuclear reactor at the end of a long boom. Credit: NASA

We have more details about NASA's planned Space Reactor-1, which will use nuclear-electric propulsion to travel to Mars.

It will carry three Mars helicopters that will land via a novel "skyfall" technique. Science instruments on SR-1 are planned but TBD. 🔭🧪

www.science.org/content/arti...

Curiosity reaches once distant honeycomb rocks YouTube video by Mars Guy

Curiosity reaches once distant honeycomb rocks
Mars Guy Episode 262 / 12th April, 2026

#NASA's #Mars rover #Curiosity

2026-03-23 Sol 4844: Mars Descent Imager #MARDI

mars.nasa.gov/raw_images/1...

NASA/JPL-Caltech/MSSS/j. Roger

An ochre toned mosaic of 82 images capturing a Martian landscape.

A zoom on a nearby butte.

A zoom with layered rocks in the foreground

A Martian rock (not part of the large mosaic of the first image).

Mastcam imagery captured a few days ago by Curiosity

#Mars Apr. 8, 2026 - Sol 4860 🧪🔭
Credits images: NASA/JPL-Caltech/MSSS/fredk

HiPOD: Strange Patterns in Echus Chasma

This image shows bright and dark patterns with curving boundaries, a good example of Mars art. What caused this appearance?

https://uahirise.org/hipod/ESP_042835_1800
NASA/JPL-Caltech/University of Arizona
#Mars #science #NASA

2nd that reporting 👍

No they didn't, this isn't a real image. NASA don't post AI slop!

HiPOD: A Fluvial Valley in Arabia Terra

This observation features a fluvial channel and a possible palaeolake basin, the extent of which has been calculated based on outlet valley elevation.

https://uahirise.org/hipod/ESP_076856_2100
NASA/JPL-Caltech/University of Arizona
#Mars #science #NASA

A series of close-ups of part of the shallow circular percussive abrasion revealing the nature of the rock just underneath the rock surface which appears consistently fine grained

A series of close-ups of part of the shallow circular percussive abrasion revealing the nature of the rock just underneath the rock surface which appears consistently fine grained

A series of close-ups of part of the shallow circular percussive abrasion revealing the nature of the rock just underneath the rock surface which appears consistently fine grained

NASA Mars Perseverance Rover Sol 1,824 (8th April, 2026)

Abrasion close ups

SHERLOC_WATSON Cam @ 17:54 local time
S/D: 087/4084
CC BY-NC-SA 4.0 Credits: NASA / JPL-Caltech / MSSS / Martian-Observer