That's not really a new idea through. It's actually used as an excuse why you can only send certain things through, like solids instead of biological materials. But in this case, all we need to do is send a proton at a certain speed and the campaign already offers ways to do that on top of the inherited tricks present within the core rules.
One great example would be a Crystal Ball, so for under 80k you can create a six inch circle to transmit light back and forth. It's just enough to squeeze almost twelve thousand jacketed fibers together, enough that at the current top rate of one petabyte per second you can transmit Earth's entire Internet in a second or two. Claiming it only works 0.05% of the time, and for only thirty minutes a day, still let's entire planets to sync up on a daily basis without even having to filter out useless junk.
If you're with a DM that just tiresomely bludgeons magic with banhammer pulled from a shitty place you can simply use something like the Mary Sue Androids. Just tape a bunch of their database computers together on a couple ships and let them shuttle it back and forth and you could still sync planets. You don't need to contact Prime 17's Amazon17 if you can search a copy of Amazon17's database locally and your order gets posted next sync.
Careful with the real science stuff.
Well catgirls die when we talk about real stuff so this is our chance to kill them
before the mission.
Plus D&D in space, and other fictional implications, is always a fascinating nerd thing to discuss. Why do you think people have been doing it for decades?
Edit - Osl decided to leave this one post and wipe the rest to reconstruct the narrative based on how he says went down. The problem with that is, as you can see, I'll gladly highlight it in red. This is because I don't need secrecy to fool you into something and I rather thank him for leaving this post and the actual moderators for seeing through it. Thanks to it I received a PM of the content he tried to wipe from the actual moderators (without the bbcode) and apparently he has been warned to never edit anyone's post ever again.