Transmissions is the Outer Reaches mailing system which allows players to send a mail to any planet within the Outer Reaches universe. If you send a mail
to an uncolonised planet, you will see a message letting you know it's uncolonised. When you recieve a mail the Transmissions light will come on to let you
know it's there. You can access your mail by clicking the section that lights up in the top right section of the screen.