Deception

I am so small but six feet tall
I am in darkness but the sun blinds me
I am not moving but fly at seventeen thousand miles per hour
I am alone but surrounded by half a million pieces of debris
I could touch the clouds but am more than a hundred miles above them
I am space walking but my legs don't move
I am calm but my heart is pounding
I am called a space man but I am a woman
I am looking at a clean and beautiful blue planet but it is polluted and dying