The Starship Flight 7 booster during its static fire for Flight 9 earlier today. Image: SpaceXSpaceX has confirmed that it will reuse a booster for the first time on the next Starship test flight. The firm shared details about a static fire of the Super Heavy booster that flew on Starship Flight 7 earlier today and added that the rocket will fly on Starship Flight 9. Flight 9 will be perhaps the most critical test flight of the program so far as SpaceX will attempt to successfully fly its second-generation upper-stage rocket for the third time after consecutive failures on Starship Flights 7 and 8 earlier this year.SpaceX Asserts Starship Super Heavy Reuse Will Enable It To Fly Rockets Through A No-Touch ProfileSpaceX's latest update about the Starship program comes as the firm lifted the 232-feet-tall rocket to the launch pad earlier this week. As SpaceX geared up for its tests, officials in Boca Chica, Texas, sent out non-flight testing notices to the general public. True to form, SpaceX tested the Super Heavy booster earlier today and confirmed it through a social media update.The firm revealed that 29 out of the 33 engines on the rocket are flight-proven, or, in other words, flew for the first time on Flight 7. It also confirmed that the booster tested earlier today will fly on Starship Flight 9. As a result, Flight 9 will be the first test in the Starship program where SpaceX attempts to reuse a rocket booster. It will also be a first in aerospace history for a rocket with more than two dozen engines to attempt re-flight.2 of 9Successful re-use of a Super Heavy booster will mark a key step for SpaceX when it comes to Starship's progress as it will pave the way for the firm to upgrade its booster design and focus on the upper-stage ship. Unlike the booster, which has been recovered multiple times through the launch tower, SpaceX is yet to successfully recover the upper-stage ship.During all Starship flights so far, the ship has either disintegrated during flight or successfully and softly splashed down in the water. Ahead of Starship Flight 7 in January, SpaceX was gearing up to catch the rocket with the tower as it introduced catch hardware to evaluate it ahead of a potential attempt.However, during Flights 7 and 8, the ship failed to complete the mission and exploded soon after separating from the first stage. For Flight 7, SpaceX explained that vibrations in the rocket's propulsion system led to its engines shutting down. While the FAA has closed SpaceX's Starship Flight 7 investigation, neither SpaceX nor the agency have shared any updates for the Flight 8 mishap.A booster static fire isn't any indication of an upcoming launch either, as SpaceX has previously tested the booster more than a month ahead of liftoff. It also didn't share details about engine performance, making it likely that today's static fire was to evaluate the rocket's systems for re-use and to make potential corrective actions ahead of Flight 9.Deal of the Day