NASAs SPHEREx observatory will lend insight into what happened after the Big Bang, measure the glow of galaxies near and far, and search the Milky Way for building blocks of life.
NASA and SpaceX are planning to launch the SPHEREx astrophysics observatory in late February 2025. SPHEREx, which stands for Spectro-Photometer for the History of the Universe, Epoch of Reionization, and Ices Explorer, will lift off aboard a SpaceX Falcon 9 rocket from Vandenberg Space Force Base in California.
Roughly the size of a subcompact car, SPHEREx will enter a polar orbit around Earth. From there, it will map the entire sky in 3D by capturing images in every direction, similar to scanning the inside of a globe. The resulting map will feature hundreds of millions of stars and galaxies, displayed in 102 distinct colors, each representing a unique wavelength of light.
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