Solar-powered hot-air balloons, floating 2.5 times as high as Mount Everest, detected a buried explosion more clearly than ground-based sensors did.
J. Lee
		Posted inScience Updates		
			 
									
					
		
			
	
New Earth Orbiter Provides a Sharper Look at a Changing Planet
A first look at data from NASA’s laser altimeter mission ICESat-2 reveals very high resolution 3-D profiles of ice on land and sea, forests, and shallow bodies of water.

 
				