Mercury mission to fly by closest planet to the sun for the first time – CNN News Science News Mercury mission to fly by closest planet to the sun for the first time CNNView Full Coverage on Google News Source: Science News October 1, 2021/by PR PR http://gulfstrategic.com/gc/wp-content/uploads/logo_final.jpg 0 0 PR PR http://gulfstrategic.com/gc/wp-content/uploads/logo_final.jpg PR PR2021-10-01 15:15:002021-10-01 17:07:12Mercury mission to fly by closest planet to the sun for the first time - CNN