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		| Paper: | 
		Masers and VSOP-2 | 
	 
	
		| Volume: | 
		402, Approaching Micro-Arcsecond Resolution with VSOP-2: Astrophysics and Technologies | 
	 
	
		| Page: | 
		419 | 
	 
	
		| Authors: | 
		Elitzur, M. | 
	 
	
	
		| Abstract: | 
		Maser studies where VSOP-2 can make its strongest impact involve proper motion measurements. In this talk I review outstanding issues in topics ranging from star forming regions to active galactic nuclei in which VSOP-2 proper motion measurements offer the promise of seminal contributions. | 
	 
	
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