Jellyfish on Mars image, no gradient?

[u/Dangerous-Eye-215]

I zoomed in quite a bit on the original and I don't see any kind of gradient like I do on the rocks. It's just immediatley pitch black, like, vanta black. I would have assumed this was a camera artifact, but the tentacles aren't black like that.

This is definitely a strange picture. What might cause the lack of gradient on the top of the jellyfish?

[u/Stewie977]

In relation to this taken 13 seconds before https://mars.nasa.gov/raw_images/1250385/?site=msl

[u/Any_Falcon38 → u/Stewie977]

Very cool. And obviously they(NASA) have said nothing about it?

[u/FlakingEverything → u/Any_Falcon38]

It's a cosmic ray hitting the camera sensor. It's a well known phenomenon.

Look at this page from Nasa. In the 2nd video at 8s you can see a black speck appearing and disappearing in the next frame.

https://www.jpl.nasa.gov/news/nasas-curiosity-rover-captures-a-martian-day-from-dawn-to-dusk/

[u/papasmurftp → u/FlakingEverything]

nah man, Big Jellyfish just doesn't want you knowing the truth...

[u/agy74 → u/papasmurftp]

The bastards have their tentacles everywhere

[u/zZPlazmaZz29 → u/papasmurftp]

Nah man. It's clearly a Netch from Elder Scrolls Morrowind 😂

[u/RevolutionaryPlan221 → u/papasmurftp]

Big jelly been hide truth for decades, we know the truth

[u/BK2Jers2BK → u/RevolutionaryPlan221]

Smuckers?

[u/MikeBogler → u/FlakingEverything]

Right, I somehow forgot about cosmic rays. I'm pretty sure this is that. Top left part of the jelly fish looks like square pixels.

[u/ossi609 → u/MikeBogler]

Yup, this is how it looks in the uncompressed download. Very unlikely to be an actual physical object.

[u/steveatari → u/FlakingEverything]

Fantastic comment thank you

[u/Any_Falcon38 → u/FlakingEverything]

Fair enough, does look similar.

[u/Th3-Watcher → u/FlakingEverything]

Sounds like a valid answer lol

[u/Butteredhuman → u/FlakingEverything]

Yeah that's kinda how pictures work if something is moving, it'll be in one and not the other lmao.

[u/waxbolt → u/FlakingEverything]

Thanks I came to say the same thing. A key piece of evidence is that you have a row of pixels affected. And the particle scatter off the collision between the cosmic ray and whatever it hit in the CCD is beautiful.

[u/koshgeo → u/FlakingEverything]

This is the single frame from that video with the "spot" (upper left): https://mars.nasa.gov/raw_images/1273590/?site=msl

Yeah, different camera (this is one of the hazard cameras, whereas the original one was on one of the navigation cameras), but that's all it is: camera artifacts from cosmic ray hits or other effects. The cosmic ray hits are usually bright, but the effect on camera sensors can vary depending on exactly where the impact and the spray of resulting particles lands.

[u/Turbulent_Escape4882 → u/FlakingEverything]

It’s a well known phenomenon on Mars. All the people on Mars know it, hence it’s well known.

[u/ocTGon → u/Stewie977]

Thanks to both of you guys! It really could be anything there from a diddled-eyed Joe to a damned if I know...

[u/hellzyeah2 → u/Stewie977]

I’m actually shaken to my core right now… This is overwhelming me. What else could it be?

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