This is an intriguing letter with a great deal of potential. I found some technical issues such as the use of the lower case i when an upper case I is needed. In this phrase, earthquakes,tornados,tsunamis, I suggest inserting spaces after the commas.

I liked the use of the terms Starpeace and Interplanetary Space Day Foundation because they made me smile. I also liked the last sentence in the letter.

This is an intriguing and amusing letter, with a great deal of potential. Keep writing.