With the first one all along the trench there are objects similar to the terminal "disc". That suggests to me an erosion event exposing some different geology, which has different erosion qualities. Ancient volcanic intrusions being exposed?
Jeff Bezos, Richard Branson and Elon Musk?
Oh, like a size contest? To see which one is the biggest.... I mean HAS the biggest.... yeah.
I just listened to the Spanish commentary... There’s an awful lot of unfounded speculation, but it is very interesting to see a second group with the same distancing. However, I think it's the ol' Mars faces all over again... Seeing patterns, and making the enormous leap that nature cannot produce them.
I'm more curious about the small mid sky objects ~ what are they, distance/range markers?
Looks like transverse dune formations, caused by wind depositing sand at regular intervals. The 'disk' is just a complete semicircular barchan dune that extends right across the trench.
They are only a few tens of metres high - simply lumps of rock that have somehow resisted the dominant form of erosion here, which is probably wind erosion.
Aligned to sand born wind (shot) blasting away at a firm, or maybe previously solidified surface crust?
I wonder if they could be a Martian form of some kind of Anaerobic Fugus, different to Earthly forms of life?Flowers on Mars? Photo of strange growth taken by NASA rover likely not alien life
There’s still no extraterrestrial life growing on Mars, despite some chatter around a fascinating photo snapped on our planetary neighbor. NASA’s Mars rover Curiosity captured an intriguing image of a bloom-like entity on the Red Planet, but scientists say it’s no alien flower or plant.
Curiosity acquired the picture using its Mars Hand Lens Imager (MAHLI), located on the turret at the end of the rover’s robotic arm, on February 24. However, hopes of a flower garden are nothing more than fantasy. The coral-like structure – smaller than a penny — is believed to be a so-called diagenetic feature formed after sediment first was deposited.
https://www.studyfinds.org/mars-flower-nasa-curiosity-rover/
maximus otter
https://en.wikipedia.org/wiki/Desert_rose_(crystal)
Saharan gypsum desert rose from Tunisia (length 47 cm)
Baryte rose from Cleveland County, Oklahoma (size:10.2 x 7.1 x 5.5 cm)
Large desert rose formation in the Tunisian desert
A desert rose is an intricate rose-like formation of crystal clusters of gypsumor baryte, which include abundant sand grains.[1] The "petals" are crystals flattened on the c axis, fanning open in radiating clusters.
The rosette crystal habit tends to occur when the crystals form in arid sandy conditions,[1] such as the evaporation of a shallow salt basin. The crystals form a circular array of flat plates, giving the rock a shape similar to a rose blossom. Gypsum roses usually have better defined, sharper edges than baryte roses. Celestine and other bladed evaporite minerals may also form rosette clusters.[1] They can appear either as a single rose-like bloom or as clusters of blooms, typically ranging from pea-sized to 4 inches (10 cm) in diameter.
Just checked temperatures on Mars (Feb), seems it would be far to cold for desert rose to survive as it's well into the minus side of the scale.
Flowers on Mars? Photo of strange growth taken by NASA rover likely not alien life
There’s still no extraterrestrial life growing on Mars, despite some chatter around a fascinating photo snapped on our planetary neighbor. NASA’s Mars rover Curiosity captured an intriguing image of a bloom-like entity on the Red Planet, but scientists say it’s no alien flower or plant.
Curiosity acquired the picture using its Mars Hand Lens Imager (MAHLI), located on the turret at the end of the rover’s robotic arm, on February 24. However, hopes of a flower garden are nothing more than fantasy. The coral-like structure – smaller than a penny — is believed to be a so-called diagenetic feature formed after sediment first was deposited.
https://www.studyfinds.org/mars-flower-nasa-curiosity-rover/
maximus otter
Maybe they (the lines) are possibly formed by the same process as the structures of the desert rose, i.e. by a moisture content within the winds forming the ripples on the gritty type sands of Mars?
Right. Though what I can't quite understand about this, is that if they were formed thousands of years ago, how could they stand up to thousands of very strong wind blown dust storms. Wouldn't it be just sand-blasted away to nothing over that period of time?
It looks a bit like the exhaust has dropped off something. One can only hope they have something akin to KwikFit on Mars.
Don’t assume Mars dust storms are anything like dust storms here. The surface atmospheric pressure on Mars is so low we would consider it a pretty good vacuum on Earth. The “wind” - such as it is - is incredibly tenuous. And the airborne dust tends to be the very finest of grains in atmospheric suspension. More akin to soot or talcum powder.
