NASA for the first time officially stated that the cause of the accident of the cargo ship Dragon in June 2015 was the design error made by the company SpaceX. On report American space agency, published in March 2018, drew the attention of Quartz. The document confirms the previously voiced SpaceX cause of the explosion of the Falcon 9 rocket: the destruction of the steel fastener, which held the helium vessel, designed to pressurize the tank with liquid oxygen of the second stage. NASA notes that the manufacture of fastening used an alloy that does not meet the standards accepted in the aerospace industry. In the previously published report SpaceX said that such a fastening could not stand a fifth of the maximum permissible load. NASA emphasizes that SpaceX did not conduct the necessary test procedures to verify the reliability of the selected alloy. Related materials 00:02 – Today Still flying “Roskosmos” asks for money for the most useless and expensive missile Quartz writes that by December 2015 the company had complied with all the recommendations of the space agency regarding safety engineering. NASA, according to the publication, decided to publish a report on the accident in order to “store historical data on the failure.” Launching June 28, 2015 to the International Space Station, the Falcon 9 rocket with Dragon’s Dragon truck exploded in the third minute after take-off. The ship was to deliver about two tons of cargo to the station, in particular, food, equipment and materials for scientific experiments. More important news in the Telegram channel «The ribbon of the day» . Subscribe!