Elon Musk says this is why SpaceX's rocket exploded last month - and how he plans to keep it from happening again

Last month, Elon Musk's private spaceflight company, SpaceX, suffered a heart-breaking end to a spotless record for their Falcon 9 rocket.

After 18 straight successful flights, a Falcon 9 carrying an unmanned Dragon spacecraft - loaded with over 4,000 pounds of supplies for astronauts on board the International Space Station &mdash exploded a few minutes after launch.

Over the last few weeks, SpaceX engineers have logged thousands of hours trying to pinpoint the problem. Today, Musk announced the company's preliminary results, emphasizing in a media teleconference:

"We're not characterizing this as a definitive result. We're characterizing this as the most-probable result."

SpaceX has plans for a safer spacecraft

Including adopting some personal testing

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