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Space & Astronomy

NASA rover discovers strange 'zebra rock' on the surface of Mars

By T.K. Randall
September 27, 2024 · Comment icon 5 comments
Mars zebra rock
How did this rock come to be here ? Image Credit: NASA / JPL-Caltech
This peculiar striped rock is quite unlike anything that scientists have ever seen before on the Red Planet.
NASA's Perseverance rover, which landed on the surface of Mars back in 2021, has certainly seen its fair share of unusual things since it began its adventures in Jezero crater.

This latest example, which was spotted as the rover was driving over pebble-strewn ground, has been nicknamed 'Freya Castle' and is believed to measure around 20cm in length.

Particularly odd is the fact that the rock seems to have zebra-like stripes, making it quite unlike any of the other rocks found in this particular region of the planet's surface.
"Since Freya Castle is a loose stone that is clearly different from the underlying bedrock, it has likely arrived here from someplace else," NASA wrote.

The stripes are thought to have formed through igneous or metamorphic processes.

It is hoped that if Perseverance can find more rocks of this type over the coming weeks and months, it might help shed new light on what they are, how they formed and where they came from.

Source: Mail Online | Comments (5)




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Recent comments on this story
Comment icon #1 Posted by jethrofloyd 9 days ago
 
Comment icon #2 Posted by Claira 9 days ago
Doesn't seem likely given Oumuamua's surface texture and colour. Furthermore, it's my understanding that it passed through Mars' orbit, but did not land there. I could be wrong, but that's what I recall reading about it a while back. Anyway, it would be amazing if Perseverance was able to find the source of this pretty little rock.
Comment icon #3 Posted by Waspie_Dwarf 9 days ago
I'm not sure Jethro was being serious, however if he is then it's size and speed would rather rule out ‘Oumuamua as well. It is between 100 and 1000km along it's longest axis and travelling at 26.55 km/s. Had it hit Mars it would have left a rather large crater. It crossed Mars' orbit twice, in-bound and then again out-bound, however Mars was on the opposite side of the Sun at the time and so ‘Oumuamua came nowhere near the planet. It actually crossed the orbits of Earth, Venus and Mercury too, but again did not come particularly close to any of them.
Comment icon #4 Posted by Claira 9 days ago
Thanks for the additional information. I had read about it in passing and don't recall much, aside from that it will take us more than two decades to catch up to it for further study. I'll take a look at your posts on it as it's quite interesting. I must admit, however, that I'm more curious about the pretty rock, and would be lying if I said I wasn't anxious to see the next update on it.
Comment icon #5 Posted by Ell 5 days ago
Igneous?


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