page_title: SPHEREx
hierarchical_section_title: SPHEREx
caption_attribution_description: English: SPHEREx (Spectro-Photometer for the History of the Universe, Epoch of Reionization, and Ices Explorer) is a proposed space observatory by NASA that would explore the origin of the universe, the origin and history of galaxies, and explore the origin of water in planetary systems.
context_page_description: SPHEREx is a future near-infrared space observatory that will perform an all-sky survey to measure the near-infrared spectra of approximately 450 million galaxies. In February 2019, SPHEREx was selected by NASA for its next Medium-Class Explorers mission, beating out two competing mission concepts: Arcus and FINESSE. As of April 2020, SPHEREx is targeted to launch in early 2024. The principal investigator is James Bock at Caltech in Pasadena, California.
context_section_description: SPHEREx (Spectro-Photometer for the History of the Universe, Epoch of Reionization, and Ices Explorer) is a future near-infrared space observatory that will perform an all-sky survey to measure the near-infrared spectra of approximately 450 million galaxies. In February 2019, SPHEREx was selected by NASA for its next Medium-Class Explorers mission, beating out two competing mission concepts: Arcus and FINESSE. As of April 2020, SPHEREx is targeted to launch in early 2024. The principal investigator is James Bock at Caltech in Pasadena, California.
caption: Artist's concept of SPHEREx
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