More info about The Blue Marble photo here. Isn't it just great that most NASA images are not copyrighted!
More info about Carl Sagan here.
"The Dragon is a beautiful creature, colorful and flamboyant. An extroverted bundle of energy, gifted and utterly irrepressible, everything Dragons do is on a grand scale - big ideas, ornate gestures, extreme ambitions. However, this behavior is natural and isn't meant for show. Because they are confident, fearless in the face of challenge, they are almost inevitably successful."