SpaceX successfully tests Raptor engine it plans to send to Mars:
via Tumblr http://ift.tt/2d3hZ9o
SpaceX has successfully tested a new rocket engine it plans to use to take people to Mars within the next 10 years. CEO Elon Musk tweeted about the successful first firing of the Raptor engine, and included two photos of it. http://ift.tt/1Urkomi
via Tumblr http://ift.tt/2d3hZ9o