NASA, SpaceX Update Launch Date for SPHEREx, PUNCH Missions
Technicians and engineers encapsulate NASA’s SPHEREx (Spectro-Photometer for the History of the Universe, Epoch of Reionization and Ices Explorer) observatory and PUNCH (Polarimeter to Unify the Corona and Heliosphere) satellites within a protective payload fairing inside the Astrotech Space Operations facility at Vandenberg Space Force Base in California, on Thursday, Feb. 27, 2025.
NASA and SpaceX now are targeting no earlier than Thursday, March 6, for the launch of the agency’s SPHEREx and PUNCH missions. The additional time will allow teams to complete vehicle processing and prelaunch checkouts.
The launch window opens at 10:09 p.m. EST (7:09 p.m. PST) from Space Launch Complex 4 East (SLC-4E) at Vandenberg Space Force Base in California.
The SPHEREx mission (Spectro-Photometer for the History of the Universe, Epoch of Reionization and Ices Explorer) will improve our understanding of what happened in the first second after the big bang and search for key ingredients for life in our galaxy. The PUNCH mission (Polarimeter to Unify the Corona and Heliosphere) will observe the Sun’s corona as it transitions into the solar wind.
The prelaunch news briefing now is scheduled for 3:30 p.m. on Wednesday, March 5, with coverage streaming live on NASA+. Media may ask questions via phone. For the dial-in number and passcode, media should contact the Kennedy newsroom no later than one hour before the start of the event at ksc-newsroom@mail.nasa.gov.
The SPHEREx and PUNCH live launch broadcast will begin at 9:15 p.m., Thursday, March 6, and stream live on NASA+.
Visit the NASA website for more information about SPHEREx and PUNCH.
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