The year was 1978, the days of détente, bell-bottom jeans, and disco music. That year, NASA launched a satellite to study the sun. Called ISEE-3, the satellite performed its mission as expected and then was left with nothing to do.
Several years later, ISEE-3 was re-designated the International Cometary Explorer (ICE) and tasked with intercepting the Giacobini-Zinner comet, which it did in 1985.
NASA finally put ICE out to pasture in 1997 where it has wandered the solar neighborhood in a funky orbit around where it would not get in the way. As orbits go however, they eventually ...
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