U.S. and China to Launch Mars Missions, Vying for Space Supremacy

SHANGHAI—The rivalry involving the U.S. and China assumes cosmic proportions this month, as both of those international locations get ready to send spacecraft to Mars within days of every single other.

The head-to-head Mars missions are the latest sign that China is prepared to problem the U.S. in area exploration, in latest many years an American protect.

China’s initial mission…