Motors Assist Stage Separation and Second Stage Engine Safe Start-Up Alliant Techsystems (NYSE:ATK) was selected by The Boeing Company (NYSE:BA) to manufacture the upper stage ullage motors for ...

The ullage motor, 9 inches in diameter and 47 inches in length, is similar in design to the booster separation motor used on the space shuttle’s reusable solid rocket motor.

This was the seventh test flight for Starship. On its first test flight in April of 2023, prior to booster separation, Starship also experienced a rapid unscheduled disassembly.

A few minutes after the launch and a planned “hot stage” separation, the Super Heavy booster exploded instead of continuing its planned descent and water landing, but Starship itself continued ...

SpaceX’s second test flight of its massive Starship rocket ended early Saturday when the uncrewed vehicle’s spacecraft blew up, though the launch made it farther than the company’s previous ...

Main engine cutoff and stage separation with B1082 occurred 2.5 minutes into flight, with the Falcon 9's upper stage continuing to LEO as the booster maneuvered to perform a deceleration burn.

SpaceX Starship 25 and Super Heavy booster 9 launched to orbit from the Starbase facility in South Texas. Following the launch, the booster experienced a Rapid Unplanned Disassembly (RUD).