It ran out of fuel. There was enough to relight the centre engine but not the 3 ... | Hacker News

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		jpgvm on Feb 7, 2018 \| parent \| context \| favorite \| on: SpaceX’s Falcon Heavy successfully launches It ran out of fuel. There was enough to relight the centre engine but not the 3 outer engines required to complete the landing.

GraemeL on Feb 7, 2018 [–]

It didn't actually run out of fuel. It didn't have enough of the hypergolic mix used to ignite the engines (triethylaluminium & triethylborane that causes the green flash sometimes seen at ignition) and only one of the three engines needed for the landing burn re-lit.

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