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NASA beams home cat video from 19 million miles away
(bigthink.com)
This is a most excellent place for technology news and articles.
Hah, that's interesting. I tried looking up to see if that's true, but I'm not finding any reliable sources, only sites and articles talking about the first message sent on ARPANET.
I imagine the first image file would've come well after the first text transmission, and would've required the development of a binary file transfer protocol. Maybe they're talking about XMODEM and the BBS era, before those BBSes were eventually networked onto the internet.