A SpaceX Falcon 9 rocket exploded on the launch pad during a test fire Thursday morning:
Here’s a closer look at the Falcon 9 rocket from Elon Musk’s private space company.
Falcon 9's greatest appeal is that it's reusable. Once it delivers satellites to orbit or supplies to the International Space Station, the first stage of the rocket comes back to Earth.
Reusable rockets can save SpaceX millions of dollars, since the company doesn't have to start from scratch and build a whole new rocket every time.
SpaceXThree Falcon 9 boosters that were recovered.
Rockets obviously need a lot of tests to make sure they are ready to go to space. The test SpaceX was conducting September 1 was a static test fire. According to SpaceX, the explosion occurred 'in preparation for (the) static fire.'
The last major SpaceX explosion was in the air in June 2015. Supplies bound for the International Space Station were lost.
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