Android 15 brings support for satellite connectivity but the feature is carrier-dependent. With T-Mobile's Starlink-powered satellite service almost here, Google also seems to be speeding up its work on enabling the feature in Google Messages.
Satellite-based communication will keep conversations going even when there is no cellular or Wi-Fi signal. Leaks as far back as April claimed you'd be able to connect to satellite right from Google Messages.
While the feature is not officially live, Android Authority was able to activate it to show us what it will look like. The outlet says that once the capability rolls out, a pop-up will appear within the app when you lose connection to terrestrial networks. It will ask you if you want to connect to a satellite to send and receive texts.