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								Star Walk 
								 
								Push the button. 
								 
								Swipe the 
								screen. 
								Tap your code. 
								Tap the app, and 
								Sky Walk opens. 
								 
								If you hold the 
								device up to the horizon, 
								You will see an 
								image of the sky. 
								Not just any 
								image of the sky, 
								But the image 
								that the eye sees 
								When the eye 
								sees a map. 
								 
								Star Walk is a 
								map of the sky, and 
								More than a map. 
								It is a gifted 
								teacher, 
								Teaching you 
								your place in the crowded cosmos. 
								 
								Tap an object, 
								say, a planet, and 
								Star Walk will 
								instruct you, 
								Giving the 
								planet’s size, distance, history. 
								Tap on a star, 
								say, Rigel, and 
								Star Walk will 
								remind you  
								That Rigel’s 
								light which has fired your brain’s neurons 
								Left Rigel—yes, 
								it did—light years ago. 
								 
								There are 
								galaxies out there. 
								Space, vastness, 
								nebulae, the speed of light— 
								Star Walk will 
								incite you to focus 
								Yes—focus—on 
								your place in the crowded cosmos. 
								 
								--October 8, 
								2013 
 
								 
 
								 
								
								  
 
								 
 
								 
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