How far we have come since 1973
A Pioneer 10 picture of Ganymede from 1973.
By NASA Ames Resarch Center (NASA-ARC) - NIX AC73-9279, Public Domain, Link
Compared to the level of detail we can get in recent years:
By NASA - http://photojournal.jpl.nasa.gov/catalog/PIA01609, Public Domain, Link
Share more! It’s been a long journey since 1973 anyway.
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