Mister Spaceman by Lesley Howarth

An intriguing
rites-of-passage tale about a space-obsessed boy. Thomas Moon is a space
freak, he sends daily e-mails to Junior NASA and hunts the web sites for
space news and stories. Imagine his excitement when he recieves a mysterious
e-mail, addressed to Mister Spaceman, suggesting he’s been selected for
astronaut status.