US President Donald Trump has ordered NASA to return to the moon.
The US President's signed a directive instructing the space agency to plan a new manned lunar mission.
It is 45 years since Apollo 17 astronauts last walked on the moon.
President Trump says going back can be a stepping stone to more ambitious plans:
Tune in as President Trump signs Space Policy Directive – 1: https://t.co/huc4PDVyoC
— The White House (@WhiteHouse) December 11, 2017
