“It is in your power to withdraw yourself whenever you desire. Perfect tranquility within consists in the good ordering of the mind, the realm of your own.” ~ Marcus Aurelius, Meditations

What a wonderful view of the Space Shuttle, Endeavour silhouetted against the atmosphere. Here the troposphere is orange, the stratosphere is white, and the mesosphere is blue. Amazing how these layers are colored, especially the troposphere. Definitely puts the atmosphere in a whole new perspective.