Foust Forward | Third time's the charm to return man to the moon?

President Trump's directive is the third time in less than three decades that a president has formally called for a human return to the moon. The two Presidents Bush made similar declarations, 14 and a half years apart, only to see them falter, one undone when it was saddled with a $500 billion price tag and the other failing to survive a change in administrations. SpaceNews.com