NASA has launched a new observatory called SPHEREx into space with a mission to study the universe’s formation and evolution following the Big Bang. The $488 million observatory will map the entire celestial sky four times over two years, observing in 102 different colors or wavelengths, including infrared light that is invisible to humans. SPHEREx will use spectroscopy to analyze this light and gather key information about the composition, density, temperature, and chemical makeup of galaxies and other celestial objects. This data will provide insight into how galaxies form, the origins of water in the Milky Way, and what happened in the immediate aftermath of the Big Bang. The launch had been delayed multiple times due to technical issues and bad weather, but the cone-shaped spacecraft finally lifted off aboard a SpaceX Falcon 9 rocket from Vandenberg Space Force Base in California. Alongside SPHEREx, four suitcase-sized satellites were also sent into orbit on a separate mission to study the sun. The observations and discoveries made by SPHEREx could revolutionize scientists’ understanding of the universe’s origins and development.
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