Did You Hear A Sonic Boom? SpaceX Warns That Launch May Cause Multiple Booms Over SoCal

Did you hear that boom? SpaceX completed its latest rocket launch from Vandenberg Space Force Base Friday morning and the company said some California resident may have heard one or more sonic booms as part of the mission.

The launch, scheduled for 10:44 a.m., was the Falcon 9 rocket's launch of the Transporter-15 mission. It is sending 140 payloads to a sun-synchronous orbit, including cubesats, microsats, hosted payloads and multiple orbital transfer vehicles that will deploy an additional 13 spacecraft at a future date.

Watch Falcon 9 launch the Transporter-15 mission to orbit https://t.co/Z5aXwR9Uao
— SpaceX (@SpaceX) November 26, 2025

In the past, similar events have rattled windows all across Southern California, while other times, the boom is limited to the Central Coast and Ventura County.

Among the payloads is one deployed on behalf of Umbra, an American space-technology company that builds advanced radar-imaging systems and operates a constellation of high-resolution Synthetic Aperture Radar (SAR) satellites, KTLA reported.

Falcon 9 is a reusable rocket that has been used 30 times as of Friday to launch everything from Starlink internet satellites to national security satellites.

The rocket will attempt to land on a drone ship stationed in the Pacific Ocean after it separates from its payload, according to SpaceX.