In 1989, the first space mission to understand positions, distances, motions, brightness and colors of stars was launched. Four years later, ESA's Hipparcos achieved its goals and ceased operations
Sep 28, 2026
In 1989, European Space Agency's Hipparcos mission looked to understand positions, distances, motions, brightness and colors of stars for the first time. In 1993, the operations were ceased after the fulfillment of the mission goals.