A Falcon 9 rocket carrying 27 Starlink craft is scheduled to lift off from California's Vandenberg Space Force Base today, during a nearly two-hour window that opens at 12:03 p.m. EST (1703 GMT; 9:03 a.m. local time). SpaceX will webcast the action live via its X account, beginning about five minutes before launch.

SpaceX readies its seventh test flight of Starship, the most powerful rocket ever designed. The trial will test upgrades to the spacecraft and deploy mock satellites.

While Elon Musk’s spaceflight company repeated a spectacular catch of its powerful booster stage, the upper stage experienced a catastrophic malfunction.