<blockquote>'Starting as soon as 2018, Musk's SpaceX plans to fly an unmanned spacecraft to Mars. The unmanned flights would continue about every two years, timed for when Earth and Mars are closest in orbit, and, if everything goes according to plan, build toward the first human mission to Mars with the goal of landing in 2025, Musk has said.'
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Musk hopes to transport people to Mars by 2025, June 11, 2016</blockquote>
Context<blockquote>
(Space & Entrepreneurship Act of 2015)(Earth Shield - Earth Defence) -'..SpaceX Successfully Lands Rocket..' - '..robust human spaceflight missions to the Moon, Mars, and beyond..' - Moon Express [Lunar Orbital Station 2018]Mission to Mars</blockquote>