Washington: NASA’s atmosphere-sniffing Mars Atmosphere and Volatile Evolution (MAVEN) mission has embarked on a new campaign to tighten its orbit around the red planet to become a data-relay satellite for the US space agency’s Mars 2020 rover. The operation will reduce the highest point of the spacecraft’s elliptical orbit from 6,200 kilometres to 4,500 kilometres … Continue reading NASA turns Mars probe into data-relay center for rovers