That version is ~~brightened significantly~~ (edit) a longer exposure; I like the darker one better.

https://www.nasa.gov/image-detail/amf-art002e000193/

Jpeg.

If the content loads fast, more views are given and more data is collected.

My uBo caught 6 elements, Privacy Possum got referer headers blocked from 28 sources

It's highly reasonable for them to limit image size/quality to whatever looks fine to 98% of their readers. They store and serve an absolute ton of ever-changing content to browsers/apps; The very small (and likely revenue-negative) contingent of highly motivated people can find the originals if the images are especially noteworthy like these.

NASA spends $4 billion PER ARTEMIS FLIGHT to throw reusable engines into the sea so people with influential representatives get jobs.

It is pork barrel politics at its very worse.

NASA has a lot to be proud of. but not Artemis. And not their Artemis website.