Elon Musk’s SpaceX suspects a fire is to blame for his 400-foot-tall ... oxygen fuel may have built up pressure in the colossal rocket’s cavity during liftoff and sparked a fire.

Close to 10 years after it first sent a rocket to space ... 4 methane-fueled engines leaving a trail of bright blue and purple fire. About three minutes later, the booster’s one job was done ...

However, after the rocket booster successfully separated, the company lost touch with the spacecraft and a fire developed in the rocket's back section, causing it to explode above the Atlantic ...