Elon Musk asks Twitter for help with ‘complex’ Falcon 9 explosion

Earlier this month, a Falcon 9 rocket built by SpaceX exploded on the launchpad, causing a blast that reportedly shook buildings several miles away. SpaceX is now scrambling to find out what went wrong, and this morning, CEO Elon Musk even tweeted a request for footage of the event from any witnesses.

Musk's tweets suggest that the exact details of what went wrong are unknown. "Still working on the Falcon fireball investigation," writes Musk. "Turning out to be the most difficult and complex failure we have ever had in 14 years." SpaceX originally said the explosion had been caused by an "anomaly on the pad," and later clarified that the problem occurred during the loading of propellant onto the rocket.

Here's what Musk has said this...