NASA's SPHEREx and PUNCH missions are scheduled to launch from Vandenberg Space Force Base Saturday evening, and locals can expect to hear a sonic boom.

Besides the telescope, SpaceX’s Falcon rocket provided a lift from Vandenberg for a quartet of NASA satellites called Punch. From their own separate polar orbit, the satellites will observe the sun’s corona, or outer atmosphere, and the resulting solar wind.

NASA’s newest space telescope, called SPHEREx, finally got off the ground this week, after a series of delays that had stalled its launch since late February. From low-Earth orbit, it will gather data on millions of stars and galaxies—and search for the ingredients of life.

SPHEREx begins its mission to scan hundreds of millions of galaxies, while companion satellites track solar winds.