Trump signs directive sending U.S. astronauts back to moon

Photo released by NASA on Dec. 11, 2017 shows U.S. President Donald Trump (front) signing the Space Policy Directive 1 at the White House in Washington D.C., the United States, on Dec. 11, 2017. Donald Trump on Monday signed his administration's first space policy directive, formally directing the U.S. space agency NASA to send astronauts back to the moon and eventually Mars. (Xinhua/NASA/Aubrey Gemignani)