What: Falcon 9 rocket launch at Vandenberg Space Force Base in Santa Barbara County.

When: Between 4:03 p.m. and 8:03 p.m. Wednesday after a Tuesday departure was delayed, according to SpaceX. If needed, the team may have a backup opportunity during the same time period Thursday.

Where: Space Launch Complex-4 on the South Base.

Landing: The first-stage booster, making its 23rd flight, will land on the Of Course I Still Love You droneship positioned in the Pacific Ocean.

Why: Deliver 25 satellites into orbit for the Starlink constellation. 

Watch: A live webcast of the mission is scheduled to begin about five minutes before liftoff at spacex.com/launches and on X @SpaceX.

To watch the liftoff in person, the Lompoc Valley has multiple locations offering views of the launch pad. Those include the peak of Harris Grade Road, west of Lompoc’s city limits and around Vandenberg Village, including near the intersection of Moonglow and Stardust roads. 

Vandenberg launches close to sunset or sunrise can be especially picturesque. If skies are clear, the rocket’s departure might be visible from elsewhere around California and, under certain conditions, other Western states.

Upcoming Launches: Additional SpaceX launches include the Transporter-16 mission tentatively planned for Saturday with another launch of Starlink satellites tentatively on April 1.

Launches can get delayed for a number of reasons, including technical troubles with the rocket, payload or support equipment; unfavorable weather; and scheduling issues.