SPHEREx (Spectro-Photometer for the History of the Universe, Epoch of Reionization and Ices Explorer)
December 20, 2022
| Credit | NASA | 
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| Historical Date | December 20, 2022 | 
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An illustration of NASA's SPHEREx spacecraft. The colors depicted in this illustration are for artistic purposes only.
SPHEREx will map the entire sky in near-infrared wavelengths, observing over 100 million stars in the Milky Way and more than 300 million galaxies. It will use a method called spectroscopy to learn about the composition of those objects and measure the distances to other galaxies, creating a 3D map of the cosmos.
Planned launch date: No later than April 2025
			


		
		
		
		
		
		
		
		
		
		
		
		
		
		
		
		
		
		
		
		
		
		
