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		| Paper: | 
		X-ray Interferometry | 
	 
	
		| Volume: | 
		340, Future Directions in High Resolution Astronomy: The 10th Anniversary of the VLBA | 
	 
	
		| Page: | 
		633 | 
	 
	
		| Authors: | 
		Cash, W. | 
	 
	
	
		| Abstract: | 
		X-ray interferometry is well on its way to becoming a reality. We present an update on MAXIM, the Micro-Arcsecond X-ray Imaging Mission. With the eventual goal of imaging the event horizon of a black hole, MAXIM will require a phased array of x-ray mirrors across a one kilometer aperture. Recent design advances, backed by demonstrations in the laboratory have established that such a mission is not only feasible, but affordable. Soon, x-ray observatories may rise to the standards set by radio astronomers. | 
	 
	
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