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Earth is alive, and I have witnessed its power and beauty from a special vantage point 250 miles above the surface, from the space station we see no borders, no boundaries -- we are all part of one giant organism that breathes and adapts. I have been in awe of this perspective for almost a year now. Back on Earth I anticipate looking up and seeing the space station streak across the sky, wondering how my friends and colleagues are doing up there without me. For almost 20 years humans have continuously lived and worked in space and the mission continues.