How far we have come since 1973

in #science • 5 years ago

A Pioneer 10 picture of Ganymede from 1973.

Ganymede from Pioneer 10 19.jpg
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:

Craters on Ganymede.jpg
By NASA - http://photojournal.jpl.nasa.gov/catalog/PIA01609, Public Domain, Link

Quite substantial progress...

#astronomy #worlds #moons
5 years ago in #science by
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     5 years ago 

    Share more! It’s been a long journey since 1973 anyway.

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