NASA Is Building 'World’s Most Powerful Rocket' — mashable.com

NASA is one step closer to building its next spaceship. Officials approved the Space Launch System’s transition from the formula phase to the development phase on Wednesday. NASA administrator Charles Bolden called it a "journey of scientific and human exploration that leads to Mars." The Space Launch System, or SLS, is the first exploration-class vehicle designed to get beyond low Earth orbit since the Apollo program. NASA says it will be the world's most powerful rocket.

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