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FAA grounds SpaceX after rocket falls over in flames.
(www.voanews.com)
This is a most excellent place for technology news and articles.
The problem is that something unexpected happend, so now we gotta understand it.
Was it caused by something during ascent? Now that's a problem.
If it's something that was caused during decent we "only" need to understand how to spot it, but it won't be a critical flight safety problem.