Short for Spectro-Photometer for the History of the Universe, Epoch of Reionization and Ices Explorer, SPHEREx aims to capture millions of stars and galaxies in 102 colors, creating a unique 3D map to uncover clues about the universe’s origins.

During payload testing, the SPHEREx team prepared for launch and post-launch operations. In October 2024, we conducted the first Operational Readiness Test (ORT), simulating nominal launch and post-launch events. Such tests validate the adequacy of our procedures and training for mission success.

NASA and SpaceX are targeting late February 2025 for the launch of the agency’s next astrophysics observatory, SPHEREx. Short for Spectro-Photometer for the History of the Universe, Epoch of Reionization and Ices Explorer, SPHEREx will launch aboard a SpaceX Falcon 9 rocket from Vandenberg Space Force Base in California.

SPHEREx Observatory is back in the BAE cleanroom for final cleaning, testing and closeouts prior to shipment to the launch site.

The space telescope will detect over 100 colors from hundreds of millions of stars and galaxies. Here’s what astronomers will do with all that color.

SPHEREx observatory continues its thorough testing campaign and successfully passed its vibe test at BAE Systems in Boulder, CO.

SPHEREx observatory continues its thorough testing campaign and successfully passes its acoustic test.

SPHEREx observatory is now installed in the Titan Thermal Vacuum (TVAC) test Chamber at BAE Systems in Boulder, CO.

The SPHEREx observatory is now fully assembled and ready to enter its environmental test campaign.

The final assembly of the SPHEREx observatory has began.