The FAA has grounded SpaceX's Starship pending an investigation into why the rocket's upper stage dramatically disintegrated in its latest flight.

Despite the failure, Elon Musk appeared to see the bright side, posting: "Success is uncertain, but entertainment is guaranteed!"

The US has grounded SpaceX's giant Starship rocket while an investigation is carried out into why one exploded during its latest test flight. The rocket's upper stage dramatically broke up and disintegrated over the Caribbean after launching from Texas on Thursday, forcing airline flights to alter course to avoid falling debris.

The United States grounded SpaceX's Starship and ordered Elon Musk's company to investigate why the spaceship spectacularly disintegrated.

The U.S. Federal Aviation Administration said on Friday it will oversee an investigation by Elon Musk's SpaceX into an explosive Starship test flight the previous day that forced airlines to divert dozens of flights to avoid debris.

The incident in which a SpaceX rocket broke up after launch demonstrates the challenges the FAA will face as the number of commercial space flights increases.

The U.S. Federal Aviation Administration and officials from the Turks and Caicos Islands have launched probes into SpaceX's explosive Starship rocket test that sent debris streaking over the northern Caribbean and forced airlines to divert dozens of flights.