Look at the future from a 7-years old boy's view

NASA has said it would like to send an astronaut to Mars some day soon, and 7-year-old Dexter Walters has volunteered.

In a letter to NASA, the young British boy wrote, "I heard that you are sending two people to Mars and I would like to come, but I'm 7, so I can't," Dexter's letter read. "I would like to come in the future. What do I need to do to become an astronaut?"