Incredibly beautiful images of 'Spaceship Earth'! "Please, fellow travelers, do your part to keep our spaceship, Earth, clean and healthy. Once it is no longer sustainable, we all perish..." - sincerely, Douglas M. Chapman

Incredibly beautiful images of 'Spaceship Earth'! "Please, fellow travelers, do your part to keep our spaceship, Earth, clean and healthy. Once it is no longer sustainable, we all perish..." - sincerely, Douglas M. Chapman - The images were taken by astronauts aboard the International Space Station.