SpaceX will help NASA launch twin satellites into orbit aboard the company's Falcon 9 rocket. The satellites will observe how the sun's powerful activity interacts with our planet's magnetosphere. For those in Arizona, daytime rocket launches from California are more difficult to spot than ones taking place at night or very early in the morning before sunrise. Update: The launch has been postponed 24 hours to Wednesday, July 23, the Vandenberg Space Force Base announced. No reason was given for the delay. What time is the SpaceX rocket launch from California? A Federal Aviation Administration operations plan advisory indicates the launch is being targeted for Tuesday, July 22, with backup opportunities available the following day, if needed. The launch window opens at 11:13 a.m. PT, according to NASA and a launch alert from the Vandenberg Space Force Base. Where is the next rocket launch from California? The launch will take place from Launch Complex 4E at Vandenberg Space Force Base in Santa Barbara County, California. Most launches from Vandenberg fly at a south or southeast trajectory. What is the next mission launching from Vandenberg? SpaceX will serve as the launch service provider for a NASA mission to launch twin satellites to study solar activity's effects on Earth. The TRACERS mission (Tandem Reconnection and Cusp Electrodynamics Reconnaissance Satellites) will make use of the company's famous two-stage 230-foot Falcon 9 rocket, one of the world's most active, to get the satellites into orbit, where they will observe observe how solar wind interact with Earth's magnetosphere. How to watch SpaceX Starlink launch livestream SpaceX will provide a webcast of the Starlink launch on its website beginning about 15 minutes before liftoff, along with updates on social media site X.