ABL RS1 stag 2 test
A nominal static-fire test of ABL Space System's RS1 upper stage on Jan. 7. A similar test Jan. 19 resulted in a "hard start" of the engine that destroyed the stage.

ABL Space Systems says a test incident that destroyed the upper stage of its RS1 rocket last week will delay that vehicle’s first flight by three months as it identifies and corrects the failure’s root cause.

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Jeff Foust has more than a decade of experience writing about space policy, entrepreneurial ventures and regulatory affairs. In 2001, he established spacetoday.net to aggregate and summarize the day's space-related news stories. In 2003, he started The...