Years before an unmanned rocket erupted in a fireball in October, NASA officials knew the metal in its 50-year-old Soviet-made engines could crack, causing fuel to leak and ignite, government documents show.
from latimes.com - Los Angeles Times http://ift.tt/1xmwTsJ
via HEALTH
from latimes.com - Los Angeles Times http://ift.tt/1xmwTsJ
via HEALTH
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