Recently my friend called Marster come to earth and visit my home. He is already 200 years old. If in our earth, 200 years old is impossible. But, in Mars, 200 years old is just a young boy,because the people in Mars can be alive until 3000 years old or even longer time. He takes his new-buy UFO to our earth. He said he only spent 8 hours. It's really unbelieveable, I mean so fast for this uncountable long distance. I like him very much because he is much intelligent than me, he often teaches me a lot of new knowledge.