Elon Musk: Launch pad explosion is 'most difficult and complex' failure in SpaceX's 14 years

SpaceX’s launch pad explosion last week that destroyed a Falcon 9 rocket and a communications satellite is turning out to be the “most difficult and complex failure” the company has had in its 14 years, Chief Executive Elon Musk tweeted early Friday morning.

In a series of tweets, Musk shared some details about the ongoing investigation into the fireball, which occurred Sept. 1 at Cape Canaveral Air Force Base in Florida.

The explosion occurred as the rocket was being fueled for a standard pre-launch static fire test ahead of an expected weekend launch on Sept. 3. SpaceX said last week that data indicated the “anomaly” originated around the upper-stage liquid oxygen tank.

No one was injured in the explosion, though it destroyed a $200-million communications satellite that was set to play a key role in Facebook’s plans to provide Internet access to remote villages in Africa.