Nepal, March 7 -- Elon Musk's SpaceX on Thursday once again lost the upper stage of its massive Starship rocket in a fiery explosion, even as the booster was successfully caught in its orbital test -- a near replay of the previous attempt.

Minutes after liftoff and booster separation, a live video feed showed the upper stage tumbling uncontrollably before the signal abruptly cut.

Dramatic footage circulating online showed red-hot debris raining down over the Bahamas.

"Can confirm we did lose contact with the ship. Unfortunately, this happened last time, too," SpaceX spokesman Dan Huot said, referring to January's flight, which also ended with the upper stage disintegrating over the Caribbean.

The fallout immediately impacted US airspa...