Are there any groups that share artifacts, in particular, flux probes? One needs an insane number of flux probes for the Kronyn Chain.

Legions usually will help their legion mates out with stuff like that. Also there are a lot of Galaxy Legion trade pages on FB. But you would have to trade for them. Same thing here, there is the Trading Post, located in the Galaxy Pub thread.

You will probably need to buy it, flux probe is not really worth the trouble to share considering its price.
try buying it on the trade post, it ill usually go for 1-2 CTP each (12-25 KU)

How does one get ctp at rank 35?

u can also buy with KU, which you can buy for 1.5m CR
EM works too, about 120-150 EM to 1 CTP
not entirely sure when rogue tech collecter start spawning thou~ that's the main source of CTP

seriously thou.... unless you r reset and r rich OR got a benefactor willing to pay for the mission, you won't be able to do the chain till much later, no way you can afford it

only way i can think of to get ctp on your own at rank 35 is to sell planet scans of great planets.

i'm at rank80 and still haven't done the kronyn chain yet. keep in mind that i'm vygoid, so i have an advantage with research.