NASA managed to put a spacecraft orbiting Mercury, the hottest planet in the solar system. It is time they send out more crafts for the outer planets like Neptune, Uranus and Pluto. Space exploration is going too slow. If you don't get to know your environment you can't send people into space. Sending spacecrafts to those places takes time and do Man have that much time?
http://www.astronomy.com/en/News-Observing/News/2011/03/MESSENGER%20spacecraft%20begins%20orbit%20around%20Mercury.aspx
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