Mariner Ten utilized a gravity guide maneuver around Venus to control its orbit across the Sunlight—this enabled it for making more than one flyby of Mercury. In the course of its 2nd flyby of your planet on October six, 2008, MESSENGER learned that Mercury's magnetic industry might be extremely "leaky". https://apps.apple.com/de/app/merkur-spieleraum-online/id6477957809