Sentinel-6B Vertical at SLC-4E

A SpaceX rocket carrying the Sentinel-6B satellite stands vertical on the launch pad at Space Launch Complex 4 East at Vandenberg Space Force Base in California on Sunday, Nov. 16, 2025, ahead of launch targeted for no earlier than 9:21 p.m. PST. A collaboration between NASA, ESA (European Space Agency), EUMETSAT (European Organisation for the Exploitation of Meteorological Satellites), and the National Oceanic and Atmospheric Administration (NOAA), Sentinel-6B is designed to measure sea levels down to roughly an inch for about 90% of the world’s oceans.