NASA ARTEMIS P1 craft surpasses another year in lunar orbit since 2011; it was 1 of 5 satellites launched 2007 to study Earth magnetosphere.
15 Years in Lunar Orbit: ARTEMIS P1 Satellite
NASA ARTEMIS P1 craft surpasses another year in lunar orbit since 2011; it was 1 of 5 satellites launched 2007 to study Earth magnetosphere.