SPHEREx

The Spectro-Photometer for the History of the Universe, Epoch of Reionization and Ices Explorer (SPHEREx) mission will provide the first all-sky spectral survey. Over a two-year planned mission, the SPHEREx Observatory will collect data on more than 450 million galaxies along with more than 100 million stars in the Milky Way in order to explore the origins of the universe.

SPHEREx will lift off with another NASA mission, PUNCH (The Polarimeter to Unify the Corona and Heliosphere), a constellation of four small satellites that will make global, 3D observations of the Sun’s outer atmosphere, the corona.