Faulty Strut Likely Caused SpaceX Rocket Explosion

A steel strut holding a bottle of helium likely gave way, causing the liquid oxygen tank in the upper-stage of a SpaceX Falcon 9 rocket to over-pressurize, triggering an explosion minutes after launch last month, company chief executive Elon Musk said Monday.

Published On 07/21/2015
12:00 AM EDT