SpaceX’s Falcon Heavy rocket is slated to launch on Monday evening at NASA’s Kennedy Space Center in Florida. According to the SpaceX website, the rocket’s four-hour launch window is set to begin at 11:30 p.m. ET—with the livestream starting about 20 minutes before liftoff. The website states that in the rocket’s STP-2 mission, its two “side boosters” will try to land on two different landing zones in Florida’s Cape Canaveral Air Force Station, and the center core will attempt a landing on a “droneship” in the Atlantic Ocean called Of Course I Still Love You.