What is SPHEREx designed to precisely measure to help constrain structure formation models?
Answer
The cosmic infrared background (CIB).
SPHEREx is designed to precisely measure the cosmic infrared background (CIB) and analyze the spectrum of light coming from every direction to deduce physical properties of matter billions of years ago.
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Technology Comparison: SPHEREx vs JWST in Observing 3I/ATLAS
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