1.7K views · 178 reactions | VOYAGER, NASA’s Longest-Lived Mission,...

6.2K views · 108 reactions | In March 1979, two NASA space probes,...

In March 1979, two NASA space probes, Voyager-1 and Voyager-2, moved along a trajectory near one of Jupiter’s moons, Europa, as part of the solar system exploration program. At a distance of 118,000 miles (190,000 km) from the moon's surface, Voyager-2 took a number of high-quality images and conducted measurements that led scientists to hypothesize the existence of a liquid ocean beneath the thick ice shell of the moon. All subsequent research, including the data collected by the Galileo space