SPHEREx Mission | 05 Mar 2025

Source: TH 

NASA is set to launch SPHEREx (Spectro-Photometer for the History of the Universe, Epoch of Reionization, and Ices Explorer) space telescope to study the early universe, explore the universe’s origins and trace the formation of life. 

SPHEREx Mission 

  • SPHEREx will map 450 million galaxies over 2 years, creating a 3D sky map in 102 color bands (wavelengths of light) using spectroscopy. 
    • Spectroscopy is the study of the absorption and emission of light and other radiation by matter. 
  • It will study cosmic inflation, the rapid expansion of the universe after the Big Bang (13.8 billion years ago), and analyze molecular clouds to detect water, carbon dioxide, and carbon monoxide. 
  • It will measure the collective glow of light from intergalactic space to identify unknown cosmic phenomena. 
  • The Big Bang Theory explains the universe's origin as a singular, hot, and dense point that expanded around 13.8 billion years ago, leading to its continuous expansion. 

SPHEREx _Mission

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