NASA's SPHEREx space telescope has been tucked inside a custom-built chamber on and off for the past two months undergoing tests to prepare it for its two-year mission in space. SPHEREx , which stands for Spectro-Photometer for the History of the Universe, Epoch of Reionization and Ices Explorer, is set to launch into orbit around Earth no later than April 2025. It will map the entire sky in infrared wavelengths of light, capturing not only images of hundreds of millions of stars and galaxies but spectra for these objects as well.

https://www.miragenews.com/caltech-keeps-spherex-space-telescope-cool-in-1089692/

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