TCP is unsuitable for interplanetary links, due to the massive round trip times (e.g. Earth-Mars RTT is between 3 minutes and 22 minutes.) Technically TCP could work, but the performance in practice would be atrocious. Wifi and cellular aren't comparable because (when working) they don't have RTTs measured in minutes.

That's why for interplanetary use IETF has been developing an alternative protocol suite called DTN. Unlike TCP/IP, DTN is not real-time, it is based on store-and-forward of messages (conceptually similar to UUCP.)

https://datatracker.ietf.org/wg/dtn/documents/