NASA scientist viewed first Voyager images. What he saw gave him chills.

In 1979, Alan Cummings, a scientist working on NASA’s unprecedented Voyager mission, entered a Caltech room in Pasadena, California, and saw an unusual, alien world projected on a screen. The brand-new image, just beamed back from space, revealed a place like no other ever seen. It was a moon teeming with vibrant volcanoes. Cummings, a cosmic-ray physicist at Caltech — the research…