#OTD 30 years ago: 6 October 1990, the joint ESA/NASA #Ulysses spacecraft was launched by the Shuttle #Discovery from @NASAKennedy. Ulysses was the first mission to study the environment above and below the poles of the Sun 👉 esa.int/Our_Activities… @esascience @NASAhistory During its 17.5 years in space, ESA/NASA #Ulysses rewarded scientists with the unprecedented depth and breadth of its results, not just about the Sun and its influence, but also with surprising insights into the nature of our galaxy and the Universe 👉 esa.int/Science_Explor…