Video: SpaceX Fires Up New Merlin 1D Rocket Engine

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If Wile E. Coyote had one of these rocket engines strapped to his back, he might just have caught that pesky Roadrunner. Alas for the cartoon critter, SpaceX and not ACME devised the Merlin 1D, which the commercial spaceflight company is billing as the most efficient booster rocket engine ever built.

http://www.pcmag.com/article2/0,281.../pcmag/breakingnews+(PCMag.com+Breaking+News)