U.S. wants a crewed mission to the moon in five years – but can and should that be done?

This year marks the 50th anniversary of the first moon landing and a significant turning point in world history. The Israeli robotic mission Beresheet has just arrived in lunar orbit, with a scheduled landing on April 11 – making Israel the fourth country to land on the surface of the moon. It follows China’s exciting first ever landing on the moon’s far side in January.