A lengthy journey is nearing its end for a space mission. The mission has traveled a vast distance, over 6 billion miles, since launching from a spaceport. Two orbiters will work together to gather information about a planet's formation and evolution.

This project is a collaboration between space agencies in Europe and Japan. It is named after an Italian engineer who made significant contributions to the study of a particular planet.

Further details about the mission and its objectives are available from the source, including information about its launch and the distance it has traveled.