TRUMP: The United States To Return To The Moon And To Explore Mars

On Monday, a third president, Donald Trump, announced that NASA will go back to the Moon and eventually send humans to Mars. In signing "Space Policy Directive-1," Trump committed NASA to send humans back to the Moon and then on to Mars. "This is a giant step," the president said during a ceremony that featured two astronauts who had walked on the Moon, Buzz Aldrin and Harrison Schmitt.

Credit: NASA