The long-running feud between Elon Musks space company and its fierce competitor United Launch Alliance took a bizarre twist this month when a SpaceX employee visited its facilities at Cape Canaveral, Fla., and asked for access to the roof of one of ULAs buildings.
About two weeks earlier, one of SpaceXs rockets blew up on a launchpad while it was awaiting an engine test. As part of the investigation, SpaceX officials had come across something suspicious they wanted to check out, according to three industry officials with knowledge of the episode. SpaceX had still images from video that appeared to show an odd shadow, then a white spot on the roof of a nearby building belonging to ULA, a joint venture between Lockheed Martin and Boeing.
Elon Musk, SpaceXs founder and chief executive, has called the failure the most difficult and complex the company has ever had. About a week after the explosion, he pleaded with the public to turn in video or audio of the blast and said the company has not ruled out sabotage as a factor.
Particularly trying to understand the quieter bang sound a few seconds before the fireball goes off, he wrote on Twitter. May come from rocket or something else.
At a conference in Mexico earlier this week, Musk said that finding out what went wrong is the companys absolute top priority, but he said what caused the explosion is still unknown.
Weve eliminated all of the obvious possibilities for what occurred there, he said. So what remains are the less probable answers.
He didnt say what those might be.
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