This sounds so cool!

> I’m a little puzzled about the balloons’ telemetry messages received on the WSPR network, as they have been few and far between.

But wouldn't there be a way to send messages to Starlink satellites instead of WSPR? Is it a problem of power consumption? (It would be great to be able to transmit images, not just GPS pings).

If you are wanting to send images, there are already some cool ways to do that: either SSTV (https://en.wikipedia.org/wiki/Slow-scan_television) or Wenet, which sends them at a much higher speed: https://github.com/projecthorus/wenet.