this post was submitted on 05 Jun 2025
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Science Memes

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submitted 11 months ago* (last edited 11 months ago) by fossilesque@mander.xyz to c/science_memes@mander.xyz
 

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[–] Sasquatch@lemmy.ml 107 points 11 months ago (5 children)

The "In a specific wavelength" ones are cheating imo

[–] tdawg@lemmy.world 65 points 11 months ago (1 children)

See this rainbow? It's the sun (in a certain wavelength)

[–] qjkxbmwvz@startrek.website 8 points 11 months ago

Yeah, though it looks like the cyan (which would be ~500nm) is actually false color UV image, judging by the same color scale as this https://www.nasa.gov/image-detail/5-3-2024_sdo_x1pt6_flare_131/

[–] shalafi@lemmy.world 36 points 11 months ago* (last edited 11 months ago) (1 children)

Meh, space might as well be B&W to our eyeballs. About every space pic we see is dialed into particular wavelengths.

Mad props on the creativity! Be cool to see one made of all Earth photos, and much easier I would guess.

[–] Cethin@lemmy.zip 3 points 11 months ago

While you're correct, the "specific wavelength" images still seem like cheating. Sure, purple would be pretty hard otherwise (and that purple color is a typical false color for nebulas, while the sun one is not typical for most people to see), the cyan shouldn't be hard to do. There's plenty of satalite pictures of earth with the right color, or the atmosphere. Maybe they don't want too many earth pictures, but they could ditch the white clouds for Pluto or something. White is easy. Green would be harder to replace.

[–] Lemjukes@lemm.ee 10 points 11 months ago

Especially with Uranus right there for blue… i feel like Crab Nebula for purple can get a pass though.

[–] ChaoticNeutralCzech@feddit.org 1 points 11 months ago (1 children)

All but purple, blue, black and cyan seem to be real-color. I have some doubts about brown too.

[–] Crankenstein@lemmy.world 2 points 11 months ago (1 children)

Which is weird that black isn't just a picture of the night sky. Has to be some fancy IR Hubble image that's been redshifted back to "true" (so doesn't that make it technically real-color again even though it's been manipulated? 🤔)

[–] Madison420@lemmy.world 4 points 11 months ago

Let's be honest the color "black" is just strange anyway because it is and isn't a color in a weird way.

[–] CaptainBasculin@lemmy.ml 31 points 11 months ago (3 children)

Not gonna lie, using a different wavelength feels like cheating when it comes to obtaining a color.

[–] jol@discuss.tchncs.de 9 points 11 months ago

Yeah... You can basically say "this is x-ray but represented in "

[–] ChaoticNeutralCzech@feddit.org 7 points 11 months ago* (last edited 11 months ago) (1 children)

Surprisingly many seem to be in real color: white, pink, red, orange, maybe brown, probably green, and yellow. (The well-known Neptune image is false color; Hubble deep-field is IR but that is redshifted so IDK, may be "real" color too.) Too bad white, pink and red are Earth's atmospheric phenomena, of which only the aurora is really space-related, and green is just a satellite photo. Still, within NASA's scope I guess.

[–] ArtemisimetrA@lemm.ee 1 points 11 months ago (1 children)

I thought the tops of sprites reached space

[–] ChaoticNeutralCzech@feddit.org 2 points 11 months ago

Sure but they are atmospheric phenomena because they need gas to happen.

[–] BaroqueInMind@lemmy.one 3 points 11 months ago* (last edited 11 months ago) (1 children)

But isn't that what colors literally/fundamentally are?

[–] Tlaloc_Temporal@lemmy.ca 2 points 11 months ago

Selecting one wavelength are discarding all the others, and sometimes shifting that wavelength to a more convenient hue is great for science, but feels like cheating when looking for a specific colour.

It's like looking for pictures of red cars, and getting a car that's 90% rust, a picture taken in a forest fire, and a picture taken through red-tinted glass.

[–] Kratzkopf@discuss.tchncs.de 25 points 11 months ago (1 children)

What is a sprite in this context? As in the red part?

[–] Tar_alcaran@sh.itjust.works 39 points 11 months ago

Sprites are a lightning phenomenon in the mesosphere of earth. They're red because of nitrogen. https://en.m.wikipedia.org/wiki/Sprite_(lightning)

[–] pennomi@lemmy.world 23 points 11 months ago (2 children)

Proof the universe wants you to be gay

[–] MajorMajormajormajor@lemmy.ca 7 points 11 months ago

Bro, it's not gay if you're under the Milky way.

[–] AtariDump@lemmy.world 4 points 11 months ago
[–] Blackmist@feddit.uk 19 points 11 months ago

All that. Right there in the night sky. Where kiddies can see it.

Fucking WOKEYS! They've turned SPACE gay!

[–] sheridan@lemmy.world 10 points 11 months ago (1 children)

Anyone have a link to a version large enough for a 4k wallpaper?

[–] ayyy@sh.itjust.works 9 points 11 months ago (2 children)

I thought the pride flag was a rainbow top to bottom?

[–] Edge004@lemm.ee 11 points 11 months ago (1 children)

That's an older version of the pride flag. There have been a few designs. The rainbow top to bottom one is still very popular. This website describes some of the different flags.

[–] daniskarma@lemmy.dbzer0.com 3 points 11 months ago (1 children)

I read that the progress pride flag is copyrighted and some people (or a single person) may be profiting from it.

Several sources seemed coherent with this. That's why I try to keep away from it. And also it seems be mostly used in USA anyway, I haven't seen it much around Europe.

[–] dustyData@lemmy.world 4 points 11 months ago (1 children)

The pride flag was envisioned and flown for the first time in San Francisco. For better or worse, most of global queer culture is us centric.

Most of the flags are also copyrighted or copylefted, to some degree or another. It's a jumbled mess. But in general no one is profiting unless you are literally buying a physical flag, as all of them fall into fair use or can be freely licensed for use in commercial products.

[–] captainlezbian@lemmy.world 2 points 11 months ago

In fact the creator of the lesbian flag is routinely begging to avoid homelessness

[–] ChaoticNeutralCzech@feddit.org 4 points 11 months ago* (last edited 11 months ago) (1 children)
[–] Opisek@lemmy.world 1 points 11 months ago (1 children)

You need to escape the closing bracket.

[–] ChaoticNeutralCzech@feddit.org 2 points 11 months ago

You are correct but not with a backslash but %29.

[–] spinne@sh.itjust.works 9 points 11 months ago

I bet the designer is a quilter at NASA :)

[–] AFKBRBChocolate@lemmy.world 8 points 11 months ago

Made before Trump took office, right?

[–] SereneSadie@lemmy.myserv.one 5 points 11 months ago

Means nothing coming from NASA, while they're engaging in Lavender Scare 2.0 at the behest of their Paperclipped masters.

[–] Cattypat@lemmy.blahaj.zone 3 points 11 months ago

this has been my wallpaper for I think a little over a year

[–] ThatGuy46475@lemmy.world 1 points 11 months ago

One of the blues looks green