SPHEREx Maps the Entire Sky in 3D Infrared

NASA's SPHEREx telescope has created the first complete 3D infrared sky map using 102 wavelengths invisible to human eyes. This revolutionary dataset tracks galaxy evolution and the chemical building blocks of life across hundreds of millions of celestial objects.Unlike telescopes studying narrow fields, SPHEREx scans the entire cosmos every six months, measuring distances through spectroscopy to reveal how the universe expanded after the Big Bang.The freely available data helps scientists understand how our universe became habitable, with multiple scans planned over two years to enhance observation quality.Thank you for listening to Bedtime Astronomy — your guide to the cosmos. New episodes on space exploration, NASA missions & the latest astronomy breakthroughs.