NASA's SPHEREx Telescope Begins 3D Sky Mapping

NASA's SPHEREx space telescope has officially begun scientific operations after completing calibration, now capturing approximately 3,600 images daily to create detailed, 3D maps of the entire sky in 102 infrared wavelengths. Over its two-year mission, SPHEREx will complete more than 11,000 orbits and generate four complete sky surveys, with each exposure contributing to a digital map of hundreds of millions of galaxies and cosmic phenomena. The mission aims to deepen understanding of the universe's origins, cosmic inflation, galaxy formation, and the distribution of life-supporting molecules in the Milky Way. SPHEREx uses advanced spectroscopy to measure distances between galaxies, helping to generate a 3D map and investigate the potential origins of water and life-essential chemicals. NASA highlights that SPHEREx complements other flagship telescopes like Hubble and James Webb and will aid in preparing for future missions such as the Nancy Grace Roman Space Telescope. The mission leverages partnerships with commercial industry, such as upgrades to Antarctic antennas and cloud-based data transfer, to enhance science return and reduce operational complexity.