No Place Like Home

For me it is very difficult to imagine living anywhere else but Earth.  Especially when every planet we know of can't sustain any kind of life, this is a deal breaker for me.  I live in Pennsylvania where I have a hard enough time dealing with a bad winter, having to put layers of clothes on just to go outside.  On Mars I'd have to put on a full space suit just to survive on the dusty red planet. One issue that I don't think they addressed in the video that I wondered about.  Everyone that lived on Mars would be in a self sustaining environment that is dome shaped and the air inside the dome would be circulating, would illness be even more of a problem? I feel that if someone or a group of people were to become ill that the chances of contamination to the rest of the population would likely happen. There are so many endless reasons why I feel that living on Mars just can't happen.  I truly believe that our best option is to take care of the planet we live on now. It is much easier to try an better our lives here on Earth then creating a whole new life on a different planet where the dangers are endless.  It is amazing however that scientist really thing it can be an option some day to go to Mars and live.  With that kind of thinking an the technology we have to be able to create a livable environment somewhere else we could defiantly us that kind of thinking to solve many of our issues here. Like pollution, overpopulation, loss of natural resources, etc.  Earth is home to so many different species I couldn't imagine living in a world without everything thing we are lucky to have here.