SPHEREx Mission

SPHEREx Mission

NASA is preparing to launch the SPHEREx (Spectro-Photometer for the History of the Universe, Epoch of Reionization, and Ices Explorer) space telescope, which will investigate the early universe, explore its origins, and trace the formation of life.

SPHEREx Mission Overview:

• SPHEREx will map 450 million galaxies over a span of 2 years, creating a 3D sky map in 102 color bands (different wavelengths of light) using spectroscopy.
• Spectroscopy is the study of how light and other forms of radiation interact with matter through absorption and emission.
• The mission will explore cosmic inflation, the rapid expansion of the universe following the Big Bang (approximately 13.8 billion years ago), and analyze molecular clouds to detect water, carbon dioxide, and carbon monoxide.
• SPHEREx will also measure the collective glow of light from intergalactic space to identify unknown cosmic phenomena.
• The Big Bang Theory suggests that the universe originated from a singular, hot, and dense point, which expanded about 13.8 billion years ago, and has continued to expand ever since.

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