You could send a message. The source code is available[1], but you would need to build or have access to a large antenna, which would be extremely difficult and

You could send a message. The source code is available[1], but you would need to build or have access to a large antenna, which would be extremely difficult and/or expensive. [1]: https://sourceforge.net/projects/ion-dtn/files/ion-3.6.2.tar.gz/download https://sourceforge.net/projects/ion-dtn/files/ion-3.6.2.tar...