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I bet the scientists just hate that this stuff is shared on Twitter. They made a big deal that this was transmitted from New Horizons as a compressed image (to transmit it quickly) and then it gets mauled by Twitter's recompression too.

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It's not like these copies replace the higher-res ones. Not a project scientist, but I'd rather as many people as possible see some image than only a few see only any at all.

The problem is when people zoom in and "see" things in the JPEG compression artifacts.

Also when they release the pic on Twitter in crappy form before they release it in uncompressed form.

It says png on the file and headers.

Ah, it does! They did the original "sneak peak" on Instagram and this was the file: https://igcdn-photos-h-a.akamaihd.net/hphotos-ak-xfa1/t51.28...

I hear so many complaints about Twitter recompressing pics I figured that would happen here.

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